Hihgly corrosion-resistant, rust-prevention coating material, highly corrosion-resistant steel, and steel structure

ABSTRACT

A highly corrosion-resistant, rust-prevention coating material comprising:
         an inorganic binder; and   Zn metal particles comprised of Zn and unavoidable impurities and dispersed in the binder at the rate of 30 mass % or greater based on a dry coating film,   wherein (i) the Zn metal particles include (i-1) fine-grain Zn metal particles of 0.05 to 5 μm peak grain diameter whose grain-diameter distribution has a grain-diameter frequency distribution with a single peak and a tail on either side of the peak and (i-2) coarse-grain Zn metal particles of 6 to 100 μm peak grain diameter whose grain-diameter distribution has a grain-diameter frequency distribution with another single peak and a tail on either side of the peak, and   wherein (ii) the percentage of all Zn metal particles accounted for by Zn metal particles of 0.05 to 5 μm grain diameter expressed in volume percentage is 5 to 99%.

FIELD OF THE INVENTION

This invention relates to a highly corrosion-resistant, rust-preventioncoating material and a highly corrosion-resistant steel, particularly toa highly corrosion-resistant, rust-prevention coating material thatexhibits outstanding corrosion resistance and rust prevention whenapplied to the surface of various types of steel, to a highlycorrosion-resistant steel coated with the coating material, and to asteel structure including the steel.

DESCRIPTION OF THE RELATED ART

Rust-prevention coating materials containing large amounts of Znparticles, specifically zinc-rich paints, are in general use asrust-prevention coating materials against combating steel rusting. TheZn particles used in a zinc-rich paint are usually produced by the mistprocess. Zn particles (grains) produced by the mist process arespherical particles with a grain diameter distribution wherein theaverage grain diameter has a single frequency peak in the region of fromseveral to several tens of μm.

The Zn particles are used mainly in the undercoating of heavy-dutycorrosion preventive coating. The rust-prevention mechanism ischaracterized in utilizing the sacrificial corrosion protection effectof the Zn particles contained in the coating.

The rust-prevention performance of a zinc-rich paint coating thereforedepends heavily on the sacrificial corrosion protection effect of the Znparticles. In some use environments, the rate of Zn consumption is sohigh that the protective effect with respect to the steel does not lastvery long.

Countermeasures include that of reducing the average grain diameter ofthe Zn particles in the coating material and that of increasing thecoating thickness. But these expedients may lead to a decline inadherence to the steel and ready occurrence of coat cracking andsagging. In other words, it has been difficult to achieve a coating thatoffers excellent rust prevention performance while also being good inphysical properties and easy to apply. The aforesaid countermeasuresthus leave much to be desired.

In view of this situation, a need has been felt for the development of ahigh-performance zinc-rich paint that preserves the current merits ofsuch paints and further exhibits sacrificial corrosion protection overthe long term. A number of proposals for this purpose have beenreported.

For example, Japanese Patent Publication (A) No. H08-151538 ('538)teaches an organic coating composition reduced in Zn particle and othermetal content by addition of a bonding agent and metal powder of lessthan −750 mV potential.

Inventions aimed at improving corrosion resistance by combining newalloy particles have also been reported.

For example, Japanese Patent Publication (A) No. H01-3111178 ('178)teaches a zinc-rich paint containing Zn alloy particles and Mn particlesin addition to Zn particles. And Japanese Patent Publication (A) No.2001-164194 ('194) teaches a corrosion-resistant coating materialcontaining Zn—Al—Mg alloy particles.

These inventions attempt to enhance corrosion resistance by combiningZn—Mg alloy particles and an organic resin such as epoxy resin orurethane resin.

In addition, Japanese Patent Publication (A) No. H02-73932 ('932)teaches use of an inorganic binder. The technology of this publicationexploits the long-life performance of inorganic Zn—Mg particles having ametal structure composed of Zn and MgZn₂.

A number of other studies have approached the issue from the aspect ofparticle shape. For example, Japanese Patent Publication (A) No.2002-285102 ('102) and Japanese Patent Publication (A) No. 2005-336431('431) teach inorganic corrosion resistant coating materials containingflaky particles of Zn—Mg alloy and corrosion-resistant steels coatedwith the coating materials.

SUMMARY OF THE INVENTION

Although '538 achieves corrosion resistance superior to that ofconventional zinc-rich paints by using a binding agent and controllingmetal powder potential, it is an ordinary organic coating materialreadily degraded in an environment involving a combination of elementslike ultraviolet rays, moisture and oxygen, so that it is vulnerable tosecondary issues such the need for relatively frequent maintenance.

Another problem with '538 that must be addressed is that it generatesmuch toxic gas during baking.

'178 and '194 use mainly organic binders and '932 uses mainly aninorganic binder. All three teach use of high-corrosion-resistanceparticles such as Mg, Al and the like as metal particles.

They improve corrosion resistance by forming MgZn₂ and Mg₂Zn₁₁intermetallic compounds. Specifically, the intermetallic compounds arepresent inside alloy particles whose surfaces are covered with an oxidelayer or Zn and Mg solid solution phase.

The intermetallic compound phase having high corrosion resistancetherefore cannot easily appear at the alloy particle surfaces. As aresult, corrosion resistance is inadequate.

Moreover, when low-electrical-conductivity ZnCl₂.4Zn(OH)₂.H₂O forms inthe main rust component, the sacrificial corrosion protection effect isnot thoroughly manifested. This is another issue that must be overcome.

The alloy particles are most often produced by ingot fragmentation, theatomization process or the mist process. Reliable production of thealloy particles on an industrial scale is therefore impossible. This isanother point requiring attention.

Although '102 and '431 teach flaky alloy particles, spray-coating offlaky alloy particles is difficult. Flaky alloy particles cannot achieveadequate coating film adherence by conventional airless spraying, sothat improvement is necessary in this regard.

The object of this invention is therefore to provide a highlycorrosion-resistant, rust-prevention coating material and a highlycorrosion-resistant steel that exhibit corrosion resistance and rustprevention markedly superior to that obtainable heretofore. It achievesthis object by, unlike what has been possible heretofore, producing Znmetal particles or Zn alloy particles that have two different peak graindiameters or average grain diameters, particularly Zn metal particles orZn alloy particles having two peaks including one added on thefine-grain side, and combining these particles with an inorganic ororganic binder.

In the present invention, Zn metal particles comprised of Zn andunavoidable impurities are dispersed in the binder of therust-prevention coating material in an amount of 30 mass % or greaterbased on the dry coating film. The inventors accomplished the inventionby taking advantage of the following fundamental knowledge acquired inthe course of a broad-ranging study.

Outstanding corrosion resistance, rust prevention and coating propertyare exhibited when the Zn metal particles used have a grain diameterdistribution including two peaks, namely, when the Zn metal particlesused include both (i) fine-grain Zn metal particles of 0.05 to 5 μm peakgrain diameter or 0.01 to 5 μm average grain diameter and (ii)coarse-grain Zn metal particles of 6 to 100 μm peak grain diameter oraverage grain diameter, and the percentage of all Zn metal particlesaccounted for by fine-grain Zn metal particles of 0.05 to 5 μm graindiameter expressed in volume percent is 5% to 99%.

The inventors further conducted a detailed study regarding thepossibility of further improving the corrosion resistance and rustprevention offered by the aforesaid particles having a grain diameterdistribution including two peaks.

As a result, they learned that a rust-prevention coating materialexcellent rust prevention can be obtained by using as the fine-grain Znmetal particles or coarse-grain Zn metal particles Zn alloy particlescontaining, in mass %, 0.01 to 30% Mg and further that a rust-preventioncoating material of still more excellent rust prevention performance canbe obtained by incorporating in the Zn alloy particles, in mass %, oneor both of Al: 0.01 to 30% and Si: 0.01 to 3%.

The inventors also conducted studies focused on the shape and state ofthe Zn alloy particles and the Zn—Mg—Al—Si alloy particles containingone or both of Al: 0.01 to 30 mass % and Si: 0.01 to 3 mass %.

As a result, they ascertained that rust prevention improves, probablyowing to improved spontaneous dissolving property, when the fine-grainalloy particles or coarse-grain alloy particles are not spherical butare shaped bodies that are formed by fragmentation or the like to havemultiple flat or curved surfaces each enclosed by a single contour lineand that have physical fragmentation (fracture) faces or cracks on thesurfaces thereof.

A particularly noteworthy finding was that rust prevention improvesdramatically when cracks of 0.01 μm or greater length and 0.01 μm orgreater depth are present. The inventors further found that in this casea notable additional improvement in rust prevention is observed when oneor more of the intermetallic compounds MgZn₂, Mg₂Zn₁₁, MgZn and Mg₂Zn₃are present on the fragmentation surfaces.

The inventors further made an in-depth study with regard to a method forproducing Zn metal particles having two grain-diameter frequency peaksin the grain-diameter distribution.

As a result, they discovered that Zn alloy particles that have not onlya grain-diameter frequency peak like the conventional one but also agrain-diameter frequency peak farther to the fine-grain side than theconventional one and that exhibit even better corrosion resistance andrust prevention can be formed by producing primary particles by anordinary method like the mist process or gas-atomization process andthereafter causing the particles to collide with one another or collidewith another solid body.

The Zn alloy particles having the two grain-diameter frequency peaksexhibit excellent corrosion resistance and rust prevention when used ascoating material pigment without modification. However, a furtherinvestigation revealed that when used as mixed with conventional,widely-employed Zn particle pigment produced by an ordinary method likethe mist process or gas-atomization process, there is realized corrosionresistance and rust prevention far superior to that when conventional Znparticles are used alone.

The inventors further found that an organic coating material using theinvention Zn metal particles or Zn alloy particles as pigment exhibitsexcellent corrosion resistance and rust prevention not heretoforeachievable, even in a severe environment including a combination oforganic coating material degrading factors like ultraviolet rays,moisture and oxygen.

The inventors further carried out a thorough study regarding thedistribution of the Zn metal particles in the dry coating film andlearned that an additional improvement in corrosion resistance and rustprevention can be achieved by concentrating the fine-grain Zn alloyparticles in the film surface layer.

The present invention was accomplished based on the foregoing knowledge.The gist of the invention is as set out below.

(1) A highly corrosion-resistant, rust-prevention coating materialcomprising:

an inorganic binder; and

Zn metal particles comprised of Zn and unavoidable impurities anddispersed in the binder at the rate of 30 mass % or greater based on adry coating film,

wherein (i) the Zn metal particles include (i-1) fine-grain Zn metalparticles of 0.05 to 5 μm peak grain diameter whose grain-diameterdistribution has a grain-diameter frequency distribution with a singlepeak and a tail on either side of the peak and (i-2) coarse-grain Znmetal particles of 6 to 100 μm peak grain diameter whose grain-diameterdistribution has a grain-diameter frequency distribution with anothersingle peak and a tail on either side of the peak, and

wherein (ii) the percentage of all Zn metal particles accounted for byZn metal particles of 0.05 to 5 μm grain diameter expressed in volumepercentage is 5 to 99%.

(2) A highly corrosion-resistant, rust-prevention coating materialcomprising:

an inorganic binder; and

Zn metal particles comprised of Zn and unavoidable impurities anddispersed in the binder at the rate of 30 mass % or greater based on adry coating film,

wherein (i) the Zn metal particles include (i-1) fine-grain Zn metalparticles of 0.01 to 5 μm average grain diameter whose grain-diameterdistribution has a grain-diameter frequency distribution with a singlepeak and a tail on either side of the peak and (i-2) coarse-grain Znmetal particles of 6 to 100 μm average grain diameter whosegrain-diameter distribution has a grain-diameter frequency distributionwith another single peak and a tail on either side of the peak, and

wherein (ii) the percentage of the fine-grain Zn metal particles andcoarse-grain Zn metal particles accounted for by the fine-grain Zn metalparticles expressed in volume percentage is 5 to 99%.

(3) A highly corrosion-resistant, rust-prevention coating materialaccording to (1) or (2), wherein the metal particles are Zn alloyparticles containing, in mass %, Mg: 0.01 to 30% and a balance of Zn andunavoidable impurities.

(4) A highly corrosion-resistant, rust-prevention coating materialaccording to (1) or (2), wherein the zinc metal particles are mixedparticles including (a) zinc metal particles containing Zn andunavoidable impurities and (b) Zn alloy particles containing, in mass %,Mg: 0.01 to 30% and a balance of Zn and unavoidable impurities.

(5) A highly corrosion-resistant, rust-prevention coating materialaccording to (3) or (4), wherein the Zn alloy particles further contain,in mass %, one or both of Al: 0.01 to 30% and Si: 0.01 to 3%.

(6) A highly corrosion-resistant, rust-prevention coating materialaccording to any of (3) to (5), wherein the Zn alloy particles havephysical fracture facets and/or cracks of 0.01 μm or greater length orcracks of 0.01 μm or greater depth, and Mg solid solution phase andZn—Mg intermetallic compounds are present at the fragmentation facesand/or cracks

(7) A highly corrosion-resistant, rust-prevention coating materialaccording to (6), wherein an average value of the aspect ratio (maximumgrain diameter/minimum grain diameter) of the Zn alloy particles is 1 to1.5.

(8) A highly corrosion-resistant, rust-prevention coating materialaccording to (6) or (7), wherein the Zn—Mg intermetallic compounds areone or more of MgZn₂, Mg₂Zn₁₁, Mg₂Zn₃, MgZn and Mg₇Zn₃.

(9) A highly corrosion-resistant, rust-prevention coating materialaccording to any of (3) to (8), wherein the Zn alloy particles arepolyhedrons having multiple flat or curved surfaces each enclosed by asingle contour line.

(10) A highly corrosion-resistant, rust-prevention coating materialaccording to any of (3) to (9), which has dispersed in the binderthereof not only said fine-grain Zn alloy particles and coarse-grain Znalloy particles but also Zn metal particles of an average grain diameterof 0.05 to 50 μm containing Zn and a balance of unavoidable impurities,wherein (a) the total volume percentage of all metal particles accountedfor by Zn alloy particles of a grain diameter of 0.05 to 5 μm expressedin volume percentage is 5 to 99% and (b) the metal particles are intotal dispersed in the binder at the rate of 30 mass % or greater basedon a dry coating film.

(11) A highly corrosion-resistant, rust-prevention coating materialaccording to (10), wherein the ratio, in mass %, of (amount of thefine-grain and coarse-grain Zn metal particles or amount of thefine-grain and coarse-grain Zn alloy particles): (amount of the Zn metalparticles of an average grain diameter of 0.05 to 50 μm containing Znand a balance of unavoidable impurities) is, when expressed as 1/x, suchthat x is 300.0 or less.

(12) A highly corrosion-resistant, rust-prevention coating materialaccording to (11), wherein the Mg content of the mixed particlesincluding the Zn alloy particles and the Zn metal particles of anaverage grain diameter of 0.05 to 50 μm containing Zn and a balance ofunavoidable impurities is 0.01 to less than 30 mass % where the total ofthe mixed particles is defined as 100 mass %.

(13) A highly corrosion-resistant, rust-prevention coating materialaccording to any of (1) to (12), wherein an organic binder is usedinstead of the inorganic binder.

(14) A highly corrosion-resistant steel coated with a highlycorrosion-resistant, rust-prevention coating material set out in any of(1) to (13), wherein the thickness of the dry coating film is 2 to 700μl and the fine-grain Zn metal particles and coarse-grain Zn metalparticles or the fine-grain Zn alloy particles and coarse-grain Zn alloyparticles are dispersed in the coating film.

(15) A highly corrosion-resistant steel coated with a highlycorrosion-resistant, rust-prevention coating material set out in any of(3) to (13),

wherein the thickness of the dry coating film is 2 to 700 μm and thefine-grain Zn alloy particles and coarse-grain Zn alloy particles aredispersed in the coating film, and

wherein the content ratio of the fine-grain Zn alloy particles of agrain diameter of 0.05 to 5 μm in an outermost 10% thickness surfacelayer region of the dry film is twice or greater the content ratio ofthe fine-grain Zn alloy particles of a grain diameter of 0.05 to 5 μm inthe whole dry film.

(16) A steel structure equipped partially or completely with the highlycorrosion-resistant steel set out in (14) or (15).

This invention enables provision of highly corrosion-resistant coatingmaterial and highly corrosion-resistant steel that exhibit excellentcorrosion-resistance and rust prevention unattainable using the metalparticles added to conventional rust-prevention coating materials. Itachieves this improvement over the prior art by producing Zn metalparticles or Zn alloy particles having two grain-diameter frequencypeaks in the grain-diameter frequency distribution and combining theparticles with an inorganic or organic binder.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a diagram showing the grain-diameter distribution of the Znmetal particles contained in a conventional zinc-rich primer. It showspart of the results obtained by laser scattering particle distributionanalysis. The horizontal axis is scaled for grain diameter (μm)represented as equivalent spherical diameter. The vertical axis isscaled for frequency distribution (%) represented as equivalentspherical volume.

FIG. 2 is a diagram showing and example of the grain-diameterdistribution of Zn alloy particles contained in the invention highlycorrosion-resistant, rust-prevention coating material. It shows part ofthe results obtained by laser scattering particle distribution analysis.The horizontal axis is scaled for grain diameter (μm) represented asequivalent spherical diameter. The vertical axis is scaled for frequencydistribution (%) represented as equivalent spherical volume.

DETAILED DESCRIPTION OF THE INVENTION

The requirements specified by the present invention will be explained indetail.

The invention does not particularly specify the method of producing theZn metal particles and Zn alloy particles used. The coarse-grain Znmetal particles and coarse-grain Zn alloy particles of the inventioncan, for example, be produced by general-purpose powder productionmethods such as the mist process or the atomization process.

The fine-grain Zn metal particles and fine-grain Zn alloy particles canbe produced by the mist process or the atomization process. They canalso be produced by a physical fragmentation method that causes Zn metalparticles or Zn alloy particles produced by one of the foregoingprocesses to collide directly or indirectly with one another.

As specific physical fracture methods can be mentioned, for instance,that of adding Zn metal particles or Zn alloy particles obtained by themist process or atomization process to toluene or xylene and jetting theso-obtained slurry so as to bring counterflows into collision with oneanother, and that of causing a jetted stream of the slurry to collideperpendicularly with a separate flat solid body.

The Zn metal particles or Zn alloy particles contained in the highlycorrosion-resistant, rust-prevention coating material according to theinvention must be composed of (i-1) fine-grain Zn metal particles orfine-grain Zn alloy particles of 0.05 to 5 μm peak grain diameter or0.01 to 5 μm average diameter whose grain-diameter distribution has agrain-diameter frequency distribution with a single peak and a tail oneither side of the peak and (i-2) coarse-grain Zn metal particles orcoarse-grain Zn alloy particles of 6 to 100 μm peak grain diameter oraverage grain diameter whose grain-diameter distribution has agrain-diameter frequency distribution with another single peak and atail on either side of the peak.

Although Zn metal particles that have a single grain-diameter frequencydistribution peak, like those contained in conventional rust-preventioncoating materials, can be produced at low cost, they are limited withregard to improvement of the metal particle filling factor because, onaverage, particles of the same size come to be evenly distributed in thecoating film.

Although the approach to corrosion resistance improvement has been toreduce the peak grain diameter or average grain diameter of the metalparticle grain-diameter distribution, thereby increasing the fillingfactor, or to increase film thickness, adequate corrosion resistanceimprovement has not been achieved because these measures cause filmcracking and sagging.

In contrast, the present invention imparts two grain-diameter frequencypeaks to the grain-diameter distribution of the Zn metal particles or Znalloy particles, thus increasing the filling factor and making itpossible to markedly improve corrosion resistance without application ofa thick coat.

The grain-diameter distribution of the Zn metal particles and Zn alloyparticles can be determined by dispersing the Zn metal particles or Znalloy particles in an organic solvent such as toluene or xylene having amoisture content of 0.8% or less and conducting laser scatteringparticle distribution analysis in this state.

When the moisture content is high, caution is required because the graindiameters change owing to a reaction between the Zn metal particles orZn alloy particles and water.

In accordance with the principle of laser scattering analysis, thegrain-diameter distribution is determined from the equivalent sphericaldiameters of the Zn metal particle or Zn alloy particle grain diameters.

The grain-diameter distribution can be represented as a histogram byrepresenting the grain diameter d (μm) logarithmically on the horizontalaxis, defining 25 to 27 d segments on the logarithmic representation forthe individual orders of magnitude change in d, and linearlyrepresenting the frequency (vol %) detected for every d segment on thevertical axis.

In this invention, fragmenting the Zn alloy particles so as to formphysical fragmentation (fracture) facets or cracks on the surfacesthereof produces an improvement in corrosion resistance exceeding theimprovement in corrosion resistance that can be realized by increasingthe filling factor.

A “physical fragmentation (fracture) face” as termed with respect to thepresent invention means a face shaped by a portion of a sphericalparticle breaking away. As explained further later, the fact of the Znalloy particles having physical fragmentation faces makes it possible torealize a considerable improvement in corrosion resistance and rustprevention.

A “crack” as termed with respect to the present invention means afissure present at the spherical particle surface of a length of 0.01 μmor greater or a depth from the surface of 0.01 μm or greater. When thelength or depth of the cracks is less than 0.01 μm, an adequateimprovement in corrosion resistance cannot be obtained. A length ordepth of 0.01 μm or greater is therefore necessary.

The cracks are often formed as a byproduct of the fragmentation forobtaining the physical fragmentation faces. Regarding the abundance ofcracks, it is preferable for 1 or more cracks of 0.01 μm or greaterlength or depth to be seen in 20% or greater of the number of Zn alloyparticles per field of observation when the Zn alloy particles areobserved with a scanning electron microscope or the like.

When the peak grain diameter of the grain-diameter distribution of thefine-grain Zn metal particles or fine-grain Zn alloy particles is lessthan 0.05 μm, or when the average grain diameter thereof is less than0.01 μm, loss from the surfaces tends to occur owing to mechanicalremoval or chemical extraction, so that adequate sacrificial corrosionprotection cannot be obtained. Therefore, the lower limit of the peakgrain diameter was defined as 0.05 μm and the lower limit of the averagegrain diameter as 0.01 μm.

Two grain diameter frequency peaks cannot be obtained when the peakgrain diameter or average grain diameter of the fine-grain Zn metalparticles or fine-grain Zn alloy particles exceeds 5 μm, so 5 μm wasdefined as the upper limit.

The peak grain diameter or average grain diameter of the grain-diameterdistribution of the coarse-grain Zn metal particles or coarse-grain Znalloy particles was defined as 6 μm or greater because when it is lessthan 6 μm, the corrosion resistance and rust prevention saturate and, inaddition, it becomes impossible to obtain two grain diameter frequencypeaks.

When the peak grain diameter or average grain diameter of thegrain-diameter distribution of the coarse-grain Zn metal particles orcoarse-grain Zn alloy particles exceeds 100 μm, stable spray coating orbrush coating cannot be achieved. The upper limit was therefore definedas 100 μm.

When coating property and adherence are a concern in addition tocorrosion resistance, it is preferable to define the peak grain diameteror average grain diameter of the grain-diameter distribution of thefine-grain Zn metal particles or fine-grain Zn alloy particles as 1 to 4μm and the peak grain diameter or average grain diameter of thegrain-diameter distribution of the coarse-grain Zn metal particles orcoarse-grain Zn alloy particles as 6 to 20 μm.

Further, from the viewpoint of achieving stable spray coating, it ispreferable to define the peak grain diameter or average grain diameterof the grain-diameter distribution of the fine-grain Zn metal particlesor fine-grain Zn alloy particles as 1.5 to 2.5 μm and the peak graindiameter or average grain diameter of the grain-diameter distribution ofthe coarse-grain Zn metal particles or coarse-grain Zn alloy particlesas 8.5 to 11.5 μm.

Insofar as the particle diameters are within the foregoing ranges, nolimit is placed on the width ratios of the two different grain diameterfrequency peaks. However, sharper grain diameter frequency peaks arepreferable from the viewpoint of maximizing rust prevention performance.

Among all of the particles contained in the invention highlycorrosion-resistant, rust-prevention coating material, i.e., among thecombined total of the fine-grain Zn metal particles or fine-grain Znalloy particles whose peak grain diameter or average grain diameter ofthe grain-diameter distribution is 0.05 to 5 μm and the coarse-grain Znmetal particles or coarse-grain Zn alloy particles whose peak graindiameter or average grain diameter of the grain-diameter distribution is6 to 100 μm, the percentage of the particles accounted for by particlesof 0.05 to 5 μm diameter, expressed in volume percentage, must be 5% orgreater.

When the percentage is less than 5%, no pronounced improvement ofcorrosion resistance and rust prevention is observed.

The maximum percentage accounted for by particles of 0.05 to 5 μmdiameter contained in the invention highly corrosion-resistant,rust-prevention coating material, expressed in volume percentage, isdefined as 99% because corrosion resistance improves in proportion asthe percentage of fine-grain Zn metal particles or fine-grain Zn alloyparticles increases.

At greater than 99%, however, the excessive fine-grain Zn metalparticles do not contribute to, but may detract from, the effect ofimproving corrosion resistance. The upper limit is therefore defined as99%.

Insofar as the percentage of all Zn metal particles having two graindiameter frequency peaks accounted for by Zn metal particles of 0.05 to5 μm diameter, expressed in volume percentage, is 5 to 99%, a dramaticimprovement in corrosion resistance and rust prevention can be achievedeven if Zn metal particles produced by the mist process or gasatomization process are combined.

From the viewpoint of the applied film, it is necessary for thefine-grain Zn metal particles or fine-grain Zn alloy particles and thecoarse-grain Zn metal particles or coarse-grain Zn alloy particles to bepresent in a total amount of 30 mass % or greater based on the drycoating film. Excellent corrosion resistance and rust prevention cannotbe realized when the content is less than 30 mass %.

In the present invention, the presence of the two grain diameterfrequency peaks enables marked improvement of corrosion resistance andrust prevention even when Zn alloy particles obtained by adding Mg, Al,Si or the like to Zn are combined with conventional Zn metal particles.

The corrosion resistance and rust prevention improving effect producedby the Zn alloy particles or the mixed Zn metal particles and Zn alloyparticles having two grain diameter frequency peaks is more pronouncedthan the corrosion resistance and rust prevention improving effectproduced by the Zn alloy particles having two grain diameter frequencypeak.

Reasons for this stronger corrosion resistance improvement include,among others, an increase in the grain-diameter frequency distributionon the fine-grain side attributable to Mg addition and exposure ofphysical fracture facets and cracks.

No substantial improvement in rust prevention performance is obtainedwhen the Mg content of the Zn alloy particles is less than 0.01 mass %and rust prevention performance declines when the Mg content exceeds 30mass %. Mg content is therefore defined as 0.01 to 30 mass %.

In order to enhance physical fragmentation property and crack occurrenceby adding Mg to the Zn alloy, Mg is preferably added to a content of 0.5to 15 mass %. As Mg is more expensive than Zn, an Mg content of 0.5 to10 mass % is economically preferable.

The mixing ratio of the Zn metal particles and Zn alloy particles neednot be defined insofar as the aforesaid composition limits are observed.However, Mg addition produces no substantial improvement in rustprevention at an Mg content of less than 0.01 mass %, while Mg additionhas a reverse effect at a content exceeding 30 mass %. The total Mgcontent is therefore preferably 0.01 to 30 mass %.

Although corrosion resistance improves with increasing Mg content, Mg isa more expensive material than Zn. Since overall material cost istherefore increased by Mg addition, the total Mg content is preferably0.01 to 10 mass % for optimum balance between corrosion resistance andeconomy.

Moreover, the inventors discovered that addition of general-purpose Znmetal particles of 2 to 20 μm average grain diameter to Zn alloyparticles having two grain diameter frequency peaks in thegrain-diameter distribution enables a major improvement in economywithout loss of steel corrosion resistance enhancing effect.

However, in this case too, it is necessary for the volume percentage ofthe total of the Zn alloy particles and Zn metal particles accounted forby Zn alloy particles of 0.05 to 5 μm diameter to be 5 to 99% and forthe Zn alloy particles and Zn metal particles to be dispersed in a totalamount of 30 mass % or greater based on the dry coating film.

Further, as regards the mixing of the Zn alloy particles and Zn metalparticles, it is preferable from the viewpoint of improving corrosionresistance and rust prevention to conduct the mixing under a conditionwhereby the ratio, in mass %, of (Zn alloy particle content %): (Znmetal particle content %) is, when expressed as 1/x, such that x is300.0 or less.

When x exceeds 300.0, the effect of Zn alloy particle addition towardimprovement of corrosion resistance and rust prevention ceases to beobserved and x must therefore be made 300.0 or less.

When top priority is placed on corrosion resistance, it is preferable toincrease the percentage of Zn alloy particles without limit so that thepercentage of Zn metal particles approaches zero. However, in theinterest of striking a practical balance between corrosion resistanceand economy, the ratio (Zn alloy particle content %): (Zn metal particlecontent %) is preferably between 1:1 and 1:120. From the aspect ofmixing stability, the ratio is preferably between 1:1 and 1:30.

In the present invention, the average grain diameter in thegrain-diameter distribution of the Zn metal particles used in themixture is, from the standpoint of optimizing economy and fillingfactor, preferably 2 to 50 μm, which is an intermediate grain diameterrange in the grain-diameter distribution having two grain diameterfrequency peaks.

It is worth noting that addition of general-purpose Zn metal particlesof 2 to 50 μm average grain diameter to Zn metal particles having twograin diameter frequency peaks in the grain-diameter distribution makesit possible to achieve better economy while retaining the effect ofsteel corrosion resistance improvement.

In the present invention, corrosion resistance can be increased byadding one or both of Al and Si to the Zn alloy.

No effect of improving rust prevention performance is obtained when theAl content of the Zn alloy particles is less than 0.01 mass %. When Alis present at content exceeding 30 mass %, it impairs the physicalfragmentation property by incorporating Mg in solid solution. Al contentis therefore defined as 0.01 to 30 mass %.

From the aspects of rust prevention performance and ease of occurrenceof physical fracture facets and/or cracks, Al content is preferably 0.01to 10 mass %, and when physical fragmentation property is a primaryconcern, it is preferably 0.01 to 2 mass %

No effect of improving coating film adherence or physical fragmentationproperty is obtained when the Si content of the Zn alloy particles isless than 0.01 mass %. When Si is present at a content exceeding 3 mass%, corrosion resistance declines. Si content is therefore defined as0.01 to 3 mass %. In order to maximize coating film adherence andcorrosion resistance, Si content is preferably 0.1 to 1 mass %.

The mixing ratio of Al and Si in the coating film need not be definedinsofar as the Al and Si contents are within the aforesaid ranges. Fromthe viewpoint of corrosion resistance, the contents are preferably Al:0.01 to 1.0 mass % and Si: 0.01 to 1.0 mass %.

The Zn alloy particles containing Mg contain intermetallic compounds andcan be provided with physical fragmentation faces and/or cracks on theirouter surface during the fine alloy particle production process.

The intermetallic compounds are compounds of Mg and Zn combined insimple whole-number ratios. Examples include MgZn₂, Mg₂Zn₁₁, MgZn,Mg₂Zn₃, and Mg₇Zn₃. Among these intermetallic compound, MgZn₂ andMg₂Zn₁₁ are particularly preferable from the viewpoint of fragmentationproperty and corrosion resistance.

Corrosion resistance and rust prevention improve further when the metalparticles are not spherical but are physically fragmented into the shapeof sphere-like polyhedrons. The sphere-like polyhedrons arequasi-spheres formed by physical fragmentation of spherical particles.Polyhedrons having 2 or more faces are preferable for optimizing thebalance among coating film adherence, economy and corrosion resistance.Polyhedrons having 6 or more faces are preferable for corrosionresistance improvement.

Such Zn metal particles and Zn alloy particles are dispersed in avehicle (liquid binder) to obtain the highly corrosion-resistant,rust-prevention coating material of this invention. Usable vehiclesinclude, for example, inorganic binders such as alkyl silicate andalkali silicate, and organic binders such as epoxy resin, urethaneresin, phenoxy resin and polyester resin.

Other liquid binders are also usable, including any of the liquidbinders used in zinc-rich paints. The coating material can be either ofthe emulsion type or the solvent type.

Other ordinary additives can be incorporated within ranges not impairingcorrosion resistance For example, when the coating material is to beused to form a corrosion preventive primer coat, a third component suchas boron can be added to enhance adherence with the topcoat.

In order to achieve rust prevention capability, the mixing of the Znmetal particles and Zn alloy particles with the binder must be conductedso that the total of fine Zn metal particles or fine-grain Zn alloyparticles and coarse-grain Zn metal particles or coarse-grain Zn alloyparticles are evenly dispersed in an amount of 30 mass % or greaterbased on the dry coating film. From the viewpoint of good balance amongthe three properties of corrosion resistance, workability andcuttablility, the amount dispersed is preferably 40 to 65 mass %.

By keeping the moisture content of the produced coating material at 0.8%or less, it is possible to ensure that the fine-grain and coarse-grainZn metal particles and the fine-grain and coarse-grain Zn alloyparticles maintain their suitable stability and reactivity performance,thereby enabling production of a corrosion preventive coating materialexcellent in rust prevention.

When the highly corrosion-resistant, rust-prevention coating materialaccording to the present invention is prepared using an inorganic bindersuch as alkali silicate or alkyl silicate, it is preferable at the timeof applying it to a steel plate or other steel material to pretreat thebase material to some degree so as to ensure strong adherence.

Although application following treatment with a hand tool or power toolis acceptable, application after blasting is desirable for obtaininghigh bonding strength.

When an organic binder such as epoxy resin, urethane resin, phenoxyresin or polyester resin is used, good results can be obtained by directapplication to the steel plate or material. However, a coated steelplate or the like having still more excellent corrosion resistance canbe obtained by subjecting the surface to blasting, phosphating orchromating beforehand.

The reason for defining the lower limit of coating thickness as 2 μm isthat a coated material of adequate corrosion resistance and rustprevention cannot be obtained when the coating is thinner than 2 μm.Although rust prevention improves with increasing coat thickness, theupper limit of coating thickness must be set at 700 μm from theviewpoint of adherence performance and for preventing coat crackingafter drying and coating material sagging during application.

For optimum coat performance and economy, the preferred range of coatthickness is 5 to 50 μm in combination with an inorganic binder and 5 to100 μm in combination with an organic binder.

Moreover, with regard to the distribution of 0.05 to 5 μm grain diameterZn alloy particles in the coating, corrosion resistance and rustprevention tend to improve when the content ratio of Zn alloy particlesof a grain diameter of 0.05 to 5 μm in an outermost 10% thicknesssurface layer region of the dry film is high. In order to secure thiscorrosion resistance and rust prevention improving effect without fail,the content ratio of Zn alloy particles of a grain diameter of 0.05 to 5μm in the outermost 10% thickness surface layer region of the dry filmshould be made twice or greater the content ratio of the Zn alloyparticles of a grain diameter of 0.05 to 5 μm in the whole dry film.This markedly increases the high corrosion resistance and rustprevention effect of the coating film when it is applied to a steel.

EXAMPLES

Concrete embodiments of the present invention are explained in thefollowing.

First Set of Examples

The grain-diameter distribution and average diameter of the Zn metalparticles and Zn alloy particles, and the total volume percentage ofparticles in the 0.05 to 5 μm grain-diameter range were determined bylaser scattering particle distribution analysis.

Therefore, grain diameter was evaluated as equivalent spherical diameterand volume percentage was evaluated as the equivalent spherical volumeof the particles.

A histogram for evaluating grain diameter-distribution was drawn byrepresenting grain diameters of 0.05 μm and greater on the horizontalaxis and representing the proportion of the number of particles whosegrain diameters fell in grain-diameter intervals d_(n) to d_(n+1) (μm)of 0.05 μm and greater diameter on the vertical axis. Here,d_(n)+1=(1+α) d_(n), where n is a natural number and α is forconvenience defined as 0.09 to 0.1.

The peak value was determined from this grain-diameter histogram. In thecase where grain diameter is represented as equivalent sphericaldiameter and grain diameter is represented logarithmically, this methodmakes possible to draw a histogram that, for instance, has the 1 to 10μm range divided into 25 to 27 equal grain diameter segments.

Specifically, the histogram was created by logarithmically representinggrain diameter on the horizontal axis as equivalent spherical diameter,linearly representing in every equivalent spherical diameter segment ofd_(n) to less than d_(n+1) on the vertical axis the frequency f_(n) ofthe particles contained in the segment as the equivalent sphericalvolume percentage (%) of the total equivalent spherical volume of allmeasured particles, plotting f_(n) for every (d_(n) d_(n+1))^(1/2), andconnecting neighboring plots.

The peak value is therefore the grain diameter (d_(n) d_(n+1))^(1/2) atwhich frequency f_(n) exhibits maximum value.

The grain-diameter distribution and average grain diameter of particlesof 0.01 to 0.05 μm average diameter were determined by laser scatteringparticle distribution analysis using an analyzer equipped with anultraviolet semiconductor laser.

As termed with respect to the present invention, “fine grains” meansgrains that, as determined by grain-diameter distribution measurementusing laser scattering particle distribution analysis, are Zn metalparticles or Zn alloy particles of 0.05 to 5 μm peak grain diameter or0.01 to 5 μm average diameter having a grain-diameter frequencydistribution with a single peak and a tail on either side of the peak.The term “coarse grains” means grains that are Zn metal particles or Znalloy particles of 6 to 100 μm peak grain diameter or 6 to 100 μmaverage grain diameter having a grain-diameter frequency distributionwith another single peak and a tail on either side of the peak.

Grain diameter distributions obtained in Examples are shown in Tables 1to 172 as expressed in either peak grain diameter or average graindiameter.

The state of Zn metal particles and Zn alloy particles was determined byobserving 50 to 100 randomly extracted particles using a scanningelectron microscope equipped with a field emission electron gun.

Particle fragmentation (fracture) facets and cracked surfaces wereobserved with a scanning electron microscope. Zn alloy particles inparticular were examined for Zn and Mg distribution state and the atomicconcentration ratios of the elements by mapping analysis using anenergy-dispersive X-ray analyzer attached to a scanning electronmicroscope. It was checked whether Zn—Mg intermetallic compounds werepresent and the element ratios of those found were examined.

Presence of Zn—Mg intermetallic compounds and their types weredetermined based on the shape of the secondary electron image, color andshape of the backscattered electron image, the mapping analysis image,the result of Zn and Mg atomic concentration ratio measurement, andresult of Zn alloy particle X-ray diffraction analysis.

Specifically, Zn alloy particles for which presence of MgZn₂, Mg₂Zn₁₁ orMg₂Zn₃ was ascertained from the X-ray diffraction analysis results weremeasured with an energy-dispersive X-ray analyzer for physicalfragmentation (fracture) facets on the surfaces of particles of 5 μm orgreater grain diameter, MgZn₂, Mg₂Zn₁₁, or Mg₂Zn₃ was identified fromthe results of the Zn and Mg atomic concentration ratio measurement, andthe shape and color thereof was ascertained from the secondary electronimage and backscattered electron image of the surface thereof.

In the case of the surface of a fine particle of less than 5 μm graindiameter which, because of its small size, could not be accuratelymeasured for element ratio with an energy-dispersive X-ray analyzer,presence of MgZn₂, Mg₂Zn₁₁ or Mg₂Zn₃ was inferred by comparing thesecondary electron image and backscattered electron image with thesecondary electron image and backscattered electron image of a regionother than a physical fragmentation face.

On the other hand, in the case of Zn alloy particles having an Mgconcentration of 20 to 30 mass %, MgZn and Mg₇Zn₃ were determined fromthe results of the atomic concentration ratio measurement.

FIG. 1 shows the grain-diameter distribution of Zn metal particlescontained in a conventional zinc-rich primer, which can be considered tobe typical of the Comparative Examples. FIG. 2 shows the grain-diameterdistribution of Zn metal particles contained in a highlycorrosion-resistant, rust-prevention coating material typical of thepresent invention.

The grain-diameter distribution of the conventional zinc-rich primershown in FIG. 1 has a grain-diameter frequency peak at around 10 μm. Incontrast, the grain-diameter distribution of the Invention Example shownin FIG. 2, while also having one grain-diameter frequency peak similarto that of the Comparative Example at around 10 μm, further has anothergrain-diameter frequency peak located 2 to 3 μm toward the fine-grainside from that of the Comparative Example.

In Comparative Examples 1 to 18 shown in Table 1, almost all of theparticles are accounted for by spherical Zn metal particles of around 5to 10 μm grain diameter produced by the mist processes. On the otherhand, in all of the Invention Examples shown in Tables 2 to 5 and inComparative Examples 19 to 49 shown in Tables 2 and 3, it can be seenthat, with respect to the Zn metal particles and Zn alloy particles, theparticles exhibiting two grain-diameter distributions had fragmentation(fracture) facets or cracks and were non-spherical, generally granularpolyhedral particles of nearly spherical shape.

When the fragmentation (fracture) facets and cracked faces of the Znalloy particles of the Invention Examples were observed as backscatteredelectron images, they were found to be divided into black regions withhigh Mg and white regions with low Mg content. An analysis of the blackregions at the fragmentation faces and cracks of the particles of 5 μmor greater grain diameter revealed the presence of intermetalliccompounds, chiefly of MgZn₂ and Mg₂Zn₁₁ but in some cases Mg₂Zn₃, MgZnand Mg₇Zn₃.

Second Set of Examples

Coated test pieces were prepared as Comparative Examples and InventionExamples under the conditions indicated in Tables 1 to 172. TheComparative Examples are shown in Tables 1 to 5 and the InventionExamples in Tables 6 to 172. The coating materials of the respectiveexamples were prepared by ordinary methods. In all Comparative Examplesand Invention Examples of Tables 1 to 3, Tables 6 to 22, Tables 43 and44, and Tables 79 and 80, two types were separately prepared usingeither a commercially available ethylene silicate resin inorganic binderor a commercially available urethane resin organic binder.

In the Examples of Tables 4 and 5, Tables 23 to 42, Tables 45 to 78,Tables 81 to 98, and Tables 99 to 172, various resins were used asbinders and the type of resin used in each Example is indicated.

All coating materials had a moisture content of 0.8 mass % or less. Thethicknesses of the dried coats are given in the Tables.

Corrosion resistance was assessed by conducting the salt spray test ofJIS K 5600 (5% NaCl spray; 35° C.). Coating test pieces measuring150×70×3.2 mm were used. The bottom of each test piece was formed withan X-cut using a cutter. The evaluation adopted in the corrosion testwas time to occurrence of red rust from the test piece surface. The testresults are shown in the tables.

When time to red rusting was less than 900 hours, corrosion resistancewas rated Poor and designated by the symbol P in the tables. When timeto red rusting was 900 hours to less than 2,000 hours, corrosionresistance was rated acceptable (Good) and designated by the symbol G inthe tables. When time to red rusting was 2,000 hours or greater,corrosion resistance was rated particularly good within the acceptablerange (Excellent) and designated by the symbol E in the tables.

In comparison with the Comparative Examples 1 to 30, the InventionExamples exhibited outstanding corrosion resistance as evidenced bymarked suppression of red rusting.

Tables 43 to 78 show corrosion test results with presence/absence on theparticle surfaces of Mg solid solution phase and Zn intermetalliccompounds, and presence/absence of MgZn₂ or Mg₂Zn₁₁.

It can be seen from Tables 43 to 78 that presence of Mg solid solutionphase and Zn—Mg intermetallic compounds on the particle surfacesinhibited red rusting and that red rusting was markedly inhibited whenthe intermetallic compounds were MgZn₂ and/or Mg₂Zn₁₁ and in some casesMgZn₂, Mg₂Zn₁₁, Mg₂Zn₃, MgZn and/or Mg₇Zn₃.

Tables 79 to 98 show the corrosion test results obtained when the ratioof all particles accounted for by Zn alloy particles of a grain diameterof 0.05 to 5 μm in an outermost 10% thickness surface layer region ofthe dry film was varied.

The ratio of Zn alloy particles of a grain diameter of 0.05 to 5 μm inthe outermost 10% thickness surface layer region was varied by applyingcoating materials varied in the ratio of Zn alloy particles of a graindiameter of 0.05 to 5 μm at the final stage of the coating.

It can be seen from Tables 79 to 98 that red rusting was markedlyinhibited when the ratio of all particles accounted for by Zn alloyparticles of a grain diameter of 0.05 to 5 μm in the outermost 10%thickness surface layer region was twice or greater the ratio in thewhole dry film.

Tables 99 to 172 relate to Invention Examples in which Zn metalparticles comprising Zn and unavoidable impurities and having agrain-diameter distribution whose peak grain diameter or average graindiameter was 2 to 50 μm were later added to and mixed with fine-grain Znmetal particles and coarse-grain Zn metal particles, or fine-grain Znalloy particles and coarse-grain Zn alloy particles of InventionExamples, the mixed particles were used to prepare highlycorrosion-resistant, rust-prevention coating materials, and the preparedcoating materials were applied to steels and dried. The tables show theresults of corrosion tests conducted on the so-prepared coated steels.

The results of the evaluation are shown in the Corrosion Test Resultscolumn. When time to red rusting was less than 900 hours, corrosionresistance was rated Poor and designated by the symbol P. When time tored rusting was 900 hours to less than 2,000 hours, corrosion resistancewas rated acceptable (Good) and designated by the symbol G in thetables. When time to red rusting was 2,000 hours or greater, corrosionresistance was rated particularly good within the acceptable range(Excellent) and designated by the symbol E in the tables.

It can be seen from Tables 99 to 172 that when the coating material wasprepared from Zn alloy particles having a grain-diameter distributionwith two (fine particle and coarse particle) peaks and Zn metalparticles having a grain-diameter distribution with only one peakfalling between those of the fine particles and coarse particles,excellent corrosion resistance was exhibited in the case where theratio, in mass % based on the dry coating film, of (Zn alloy particlecontent %):(Zn metal particle content %) was, expressed as 1/x, suchthat x was 300.0 or less.

It can also be seen that corrosion resistance was excellent even when Znmetal particles of 2 to 50 μm average grain diameter were later added tothe fine-grain Zn metal particles and coarse-grain Zn metal particles.

TABLE 1 Metal grain Percent of diameter fine-grain Total distributionmetal Metal grain metal Average (Ave grain grains chemical grain CoatComparative grain diameter) (μm)) among metal component content contentof thickness Time to Example diameter Fine grain Coarse grains (Mass %)coat (μm) red rusting No. (μm) metal grain metal (Vol %) Zn Mg Al Si(Mass %) Inorganic Organic Inorganic Organic Prior Art 1 4.77 — — — 1000 0 0 33 15.6 5 P P Product 2 4.89 — — — 100 0 0 0 36 20.3 14 P P 3 5.05— — — 100 0 0 0 39 24.5 50 P P 4 4.00 — — — 100 0 0 0 37 16 100 P P 55.11 — — — 100 0 0 0 32 55 150 P P 6 5.23 — — — 100 0 0 0 38 45 160 P P7 5.39 — — — 100 0 0 0 47 65 170 P P 8 4.34 — — — 100 0 0 0 51 38 134 PP 9 4.32 — — — 100 0 0 0 52 42 167 P P 10 4.44 — — — 100 0 0 0 53 25 38P P 11 4.60 — — — 100 0 0 0 49 32 268 P P 12 3.55 — — — 100 0 0 0 48 25256 P P 13 4.66 — — — 100 0 0 0 46 36 234 P P 14 4.78 — — — 100 0 0 0 8619 243 P P 15 6.54 — — — 100 0 0 0 88 28.6 132 P P 16 6.38 — — — 100 0 00 89 27 124 P P 17 4.58 — — — 100 0 0 0 90 195 87 P P 18 15.2 — — — 1000 0 0 85 23 95 P P

TABLE 2 Metal grain diameter Percent of distribution fine-grain (Avegrain metal Total metal diameter) (μm)) grains Metal grain chemicalgrain Coat Comparative Average Coarse among metal component contentcontent of thickness Time to Example grain diameter Fine grain graingrains (Mass %) coat (μm) red rusting No. (μm) metal metal (Vol %) Zn MgAl Si (Mass %) Inorganic Organic Inorganic Organic Other 19 Deficientfine 5.6 12.8 42.04 94.5 5.5 50 23 97 P P metal grains in inventionrange 20 Deficient fine 0.005 6.4 38.41 93.2 6.8 30 18 94 P P metalgrains in invention range 21 Deficient fine 0.007 7.8 66.80 95.6 3.2 1.231 38 78 P P metal grains in invention range 22 Deficient fine 0.00813.5 76.50 87.6 4.7 5.7 2.0 42 42 213 P P metal grains in inventionrange 23 Deficient fine 5.1 121 43.60 94.6 5.4 38 55 93 P P metal grainsin invention range 24 Deficient fine 5.6 113 34.20 78.4 15.6 3.0 3.0 5316 97 P P metal grains in invention range 25 Deficient fine 0.005 1345.95 90.0 10.0 66 55 99 P P metal grains in invention range 26 Deficientfine 5.3 103 6.43 80.5 15.3 4.2 77 45 102 P P metal grains in inventionrange 27 Deficient fine 0.006 105 78.90 91.5 7.5 1.0 54 16 105 P P metalgrains in invention range 28 Deficient fine 4.5 125 44.12 95.7 3.5 0.10.8 39 19 177 P P metal grains in invention range 29 Deficient fine 3.6113 5.70 82.2 17.8 35 23 99 P P metal grains in invention range 30Deficient fine 2.7 105 67.80 91.9 3.6 2.7 1.8 65 16 56 P P metal grainsin invention range 31 Deficient fine 0.5 101 14.70 70.8 26.7 2.5 55 8100 P P metal grains in invention range

TABLE 3 Metal grain diameter distribution Percent of (Ave fine-grainTotal grain diameter) metal metal (μm)) grains Metal grain chemicalgrain Coat Comparative Average Fine Coarse among metal component contentcontent of thickness Time to Example grain diameter grain grain grains(Mass %) coat (μm) red rusting No. (μm) metal metal (Vol %) Zn Mg Al Si(Mass %) Inorganic Organic Inorganic Organic Other 32 Deficient 2.589.45 3.65 94.5 5.5 75 35 87 P P mixing ratio 33 Deficient 2.37 9.61 4.6593.0 5.5 1.5 76 38 95 P P mixing ratio 34 Deficient 2.15 9.85 99.80 94.15.9 72 65 123 P P mixing ratio 35 Deficient 2.94 9.36 2.65 85.6 9.8 4.679 37 125 P P mixing ratio 36 Deficient 2.55 12.5 1.45 93.5 4.5 1.0 1.065 13 99 P P mixing ratio 37 Deficient coat 2.65 8.56 34.60 96.1 3.9 0.810 54 94 P P metal grains 38 Deficient coat 2.94 8.21 86.53 97.5 2.5 2.516 49 146 P P metal grains 39 Deficient coat 2.58 8.33 64.58 94.5 5.52.5 1.5 9 150 146 P P metal grains 40 Deficient 2.63 10.9 35.70 68.531.5 55 14 125 P P mixing ratio 41 Deficient 1.87 8.9 43.70 70.8 17.811.4 12 17 175 P P mixing ratio 42 Deficient 3.86 9.8 21.60 99.995 0.00556 22 200 P P mixing ratio 43 Deficient 3.7 65.8 43.70 80.5 14.6 4.9 5325 187 P P mixing ratio 44 Deficient 2.8 16.9 55.40 96.4 0.007 3.6 65 32174 P P mixing ratio 45 Deficient 3.9 10.99 13.90 49.1 31.9 9.4 9.6 3225 76 P P mixing ratio 46 Deficient 4.2 14.97 44.12 56.7 25.6 11.8 5.983 42 260 P P mixing ratio 47 Deficient 3.55 7.89 14.60 64.4 35.6 55 25155 P P mixing ratio 48 Deficient 2.45 10.5 87.90 57.5 31.6 10.9 12 14167 P P mixing ratio 49 Deficient 1.45 15.6 24.60 32.2 67.8 34 17 145 PP mixing ratio

TABLE 4 Ratio of (Zn metal grains Percent or Zn alloy Diameter of fine-grains):(Later- distribution grain added Average (peak metal Zn metaldiameter diameter) of grains Zn alloy grains) of Zn metal among Zn grainZn later- grains/Zn metal Chemical component content fracture metalLater- added Zn alloy grains grains/ of Zn metal grains/Zn surfacesgrains/ added Comparative metal (μm) Zn alloy alloy grains or Ave Zn ZnExample grains Fine Coarse grains (Mass %) cracks aspect alloy metal No(μm) metal metal (Vol %) Zn Mg Al Si present? ratio grains grains 50 —5.6 12.8 5.66 70.7 27.5 1 0.8 Yes 1.12 — — 51 — 0.005 6.4 16.55 94.6 2.90 2.5 Yes 1.38 — — 52 — 0.007 7.8 21.55 94 4.5 0 1.5 Yes 1.22 — — 53 —0.008 13.5 5.66 99.43 0.07 0 0.5 Yes 1.14 — — 54 — 5.1 121 33.66 96.823.1 0.04 0.04 Yes 1.02 — — 55 — 5.6 113 45.65 100 0 0 0 Yes 1.05 — — 56— 0.005 134 49.88 68.84 29.5 0.06 1.6 Yes 1.36 — — 57 — 5.3 103 42.3392.33 7.6 0.07 0 No 1.11 — — 58 — 0.006 105 65.44 100 0 0 0 Yes 1.07 — —59 — 4.5 125 77.55 91.8 4.6 1.8 1.8 Yes 1.42 — — 60 — 3.6 113 96.55 828.3 9.2 0.5 Yes 1.38 — — 61 — 2.7 105 5.97 88.2 11.8 0 0 No 1.22 — — 62— 0.5 101 87.77 86.06 12.9 0 1.04 No 1.14 — — 63 — 2.45 11.1 3.65 99.340.6 0 0.06 Yes 1.13 — — 64 — 1.85 8.92 4.65 96.82 3.1 0.04 0.04 Yes 1.02— — 65 — 1.65 9.23 99.80 96.82 3.1 0.04 0.04 Yes 1.50 — — 66 — 2.45 9.052.65 100 0 0 0 No 1.13 — — 67 — 2.01 10.91 67.89 96.82 3.1 0.04 0.04 Yes1.04 — — 68 — 1.99 11.12 56.89 96.82 3.1 0.04 0.04 Yes 1.02 — — 69 —2.38 10.93 45.67 100 0 0 0 Yes 1.08 — — 70 — 2.49 9.34 34.67 68.5 31.5No 1.15 — — 71 — 2.34 8.77 95.66 70.8 17.8 11.4 No 1.34 — — Coatingdetails Mg Total content metal of all grain Comparative metal contentBase Coat Example grains of coat resin thickness Coating No (Mass %)(Mass %) type (μm) method Corrosion Test Results 50 — 35 Alkali-silicate2 Spray P 51 — 66 Alkyl silicate 37 Spray P 52 — 38 Alkali-silicate 12Spray P 53 — 84 Alkyl silicate 160 Brush P 54 — 39 Alkali-silicate 5Brush P 55 — 85 Alkyl silicate 12 Brush P 56 — 36 Alkali-silicate 2Spray P 57 — 56 Alkyl silicate 18 Spray P 58 — 42 Alkyl silicate 23Spray P 59 — 31 Epoxy resin 30 Brush P 60 — 88 Acrylic resin 77 Brush P61 — 78 Urethane resin 254 Brush P 62 — 36 Polyester resin 47 Spray P 63— 37 Epoxy resin 43 Spray P 64 — 45 Acrylic resin 322 Brush P 65 — 68Urethane resin 25 Brush P 66 — 79 Polyester resin 700 Brush P 67 — 10Alkali-silicate 22 Spray P 68 — 16 Acrylic resin 25 Spray P 69 — 9Alkali-silicate 14 Spray P 70 — 90 Urethane resin 112 Spray P 71 — 43Alkali-silicate 554 Spray P

TABLE 5 Percent Diameter of fine- distribution grain Average (peak metaldiameter diameter) of grains Zn alloy of Zn metal among Zn grain later-grains/Zn metal Chemical component content fracture added Zn alloygrains grains/ of Zn metal grains/Zn surfaces Comparative metal (μm) Znalloy alloy grains or Ave Example grains Fine Coarse grains (Mass %)cracks aspect No (μm) metal metal (Vol %) Zn Mg Al Si present? ratio 72— 3.99 27.6 34.21 100 0.005 Yes 1.25 73 — 1.02 21.9 7.88 80.5 14.6 4.9Yes 1.19 74 — 0.05 22.5 92.32 96.4 0.007 3.6 Yes 1.18 75 — 2.01 17.511.22 49.1 31.9 9.4 9.6 No 1.24 76 — 1.51 6.99 55.66 56.7 25.6 11.8 5.9Yes 1.11 77 — 2.38 7.65 78.99 64.4 35.6 Yes 1.27 78 — 2.35 9.25 35.8757.5 31.6 10.9 Yes 1.31 79 — 2.57 9.56 42.04 32.2 67.8 No 1.26 80 23.51.99 11.12 95.66 80.5 14.6 4.9 Yes 1.02 81 5.96 2.38 10.93 34.21 96.40.007 3.6 Yes 1.50 82 10.64 2.49 9.34 7.88 49.1 31.9 9.4 9.6 No 1.13 8316.5 0.006 105 92.32 86.06 12.9 0 1.04 Yes 1.04 84 7.95 4.5 125 11.2299.34 0.6 0 0.06 Yes 1.02 85 7.95 1.02 21.9 4.65 96.82 3.1 0.04 0.04 Yes1.08 86 9.64 0.05 22.5 99.80 91.8 4.6 1.8 1.8 No 1.15 87 0.96 2.01 17.595.66 82 8.3 9.2 0.5 Yes 1.02 88 5.26 1.51 6.99 34.21 88.2 11.8 0 0 Yes1.50 89 13.5 2.38 7.65 7.88 86.06 12.9 0 1.04 No 1.13 90 13.5 2.35 9.2592.32 99.34 0.6 0 0.06 Yes 1.04 91 9.64 2.57 9.56 11.22 96.82 2.4 0.040.04 Yes 1.02 92 16.5 2.35 9.25 55.66 99.5 0.5 0 0 Yes 1.08 93 58.2 2.579.56 78.99 99.34 0.6 0 0.06 Yes 1.15 Ratio of (Zn metal grains or Znalloy grains):(Later- added Zn metal grains) Coating details Zn Mg Totalmetal Later- content metal grains/ added of all grain Comparative Zn Znmetal content Base Coat Corrosion Example alloy metal grains of coatresin thickness Coating Test No grains grains (Mass %) (Mass %) type(μm) method Results 72 — — — 38 Urethane resin 150 Spray P 73 — — — 56Alkali silicate 18 Spray P 74 — — — 89 Alkyl silicate 657 Brush P 75 — —— 32 Alkyl silicate 24 Spray P 76 — — — 55 Urethane resin 99 Spray P 77— — — 79 Alkyl silicate 7 Spray P 78 — — — 49 Epoxy resin 100 Spray P 79— — — 89 Alkyl silicate 27 Brush P 80 1 387 1.867 43 Alkali silicate 15Spray P 81 1 198.7 0.047 38 Alkyl silicate 14 Spray P 82 1 36 0.500 56Urethane resin 55 Spray P 83 1 1.5 0.012 89 Alkyl silicate 8 Spray P 841 0.008 1.587 32 Urethane resin 122 Brush P 85 1 1.4 2.833 55 Alkylsilicate 555 Spray P 86 1 4.2 2.673 79 Alkali silicate 19 Spray P 87 11.6 0.731 10 Alkyl silicate 25 Brush P 88 1 7.5 0.671 16 Alkyl silicate58 Spray P 89 1 1.6 3.538 9 Alkyl silicate 685 Spray P 90 1 385 0.002 49Alkali silicate 19 Brush P 91 1 270 0.009 89 Urethane resin 700 Spray P92 1 195 0.003 89 Alkyl silicate 77 Spray P 93 1 2.9 0.154 79 Alkylsilicate 54 Spray P

TABLE 6 Diameter distribution of Zn metal Percent of fine Chemicalgrains/Zn alloy grain metal component content Zn alloy Total grains (Avegrain grains among Zn of Zn metal grains/Zn grain metal grain CoatInvention diameter) metal grains/ alloy grains fracture content ofthikness Time to red Example (μm) Zn alloy grains (Mass %) surfaces coat(μm) rusting No Fine metal Coarse metal (Vol %) Zn Mg Al Si present?(Mass %) Inorganic Organic Inorganic Organic 1 2.65 9.56 5.66 100 0 0 0No 35 22 120 G G 2 0.05 6.50 16.55 100 0 0 0 No 66 18 77 G G 3 4.6 65.5021.55 100 0 0 0 No 38 23 85 G G 4 3.56 13.50 5.66 100 0 0 0 No 84 25 126G G 5 4.55 16.70 33.66 100 0 0 0 No 39 15 145 G G 6 2.15 9.89 45.65 1000 0 0 No 85 19 120 G E 7 3.22 10.55 49.88 100 0 0 0 No 36 24 110 G G 82.99 9.64 42.33 100 0 0 0 No 56 15 105 G G 9 3.65 11.22 65.44 100 0 0 0No 42 10 99 G G 10 4.55 13.50 77.55 100 0 0 0 No 31 7 120 G G 11 3.5722.50 96.55 100 0 0 0 No 88 5.5 85 G G 12 1.99 8.56 5.97 100 0 0 0 No 7817 102 G E 13 2.12 9.46 87.77 100 0 0 0 No 36 22 99 G G 14 2.45 11.1086.55 100 0 0 0 No 37 26 134 G G 15 1.85 8.92 15.67 100 0 0 0 No 45 21156 G G 16 1.65 9.23 31.55 100 0 0 0 No 68 17 121 G E 17 2.45 9.05 26.76100 0 0 0 No 79 6 109 G E 18 2.01 10.91 67.89 100 0 0 0 No 47 10 89 G G19 1.99 11.12 56.89 100 0 0 0 No 56 21 94 G G 20 2.38 10.93 45.67 100 00 0 No 37 34 103 G G

TABLE 7 Diameter distribution of Percent of fine Chemical Zn metalgrains/Zn alloy grain metal component content Zn alloy Total grains (Avegrain grains among Zn of Zn metal grains/Zn grain metal grain CoatInvention diameter) metal grains/ alloy grains fracture content ofthickness Time to red Example (μm) Zn alloy grains (Mass %) surfacescoat (μm) rusting No Fine metal Coarse metal (Vol %) Zn Mg Al Sipresent? (Mass %) Inorganic Organic Inorganic Organic 21 2.49 9.34 34.67100 0 0 0 No 90 21 111 G E 22 2.34 8.77 95.66 100 0 0 0 No 43 18 90 G G23 3.99 27.60 34.21 100 0 0 0 No 38 19 109 G G 24 1.02 21.90 7.88 100 00 0 No 56 21 89 G G 25 0.05 22.50 92.32 100 0 0 0 No 89 17 99 G G 262.01 17.50 11.22 100 0 0 0 No 32 14 89 G G 27 1.51 6.99 55.66 100 0 0 0No 55 16 134 G G 28 2.38 7.65 78.99 100 0 0 0 No 79 21 120 G E 29 2.359.25 35.87 96.0 4.0 0 0 Yes 47 20.3 189 E E 30 2.57 9.56 42.04 97.5 2.50 0 Yes 49 24.5 167 G G 31 2.56 9.84 6.55 98.4 1.6 0 0 Yes 52 16 156 G G32 2.21 9.75 43.60 95.5 4.5 0 0 Yes 51 55 203 E E 33 2.64 9.85 44.1296.2 3.8 0 0 No 53 45 206 G G 34 1.99 8.56 37.21 98.0 2.0 0 0 Yes 78 65214 E E 35 2.94 8.21 43.38 94.5 5.5 0 0 Yes 83 38 256 E E 36 2.58 8.3313.52 94.0 6.0 0 0 No 89 42 215 E E 37 2.37 8.00 44.94 97.5 2.5 0 0 Yes90 25 245 E E 38 2.15 9.22 45.46 93.2 6.8 0 0 Yes 86 32 167 E E 39 2.969.36 35.96 94.5 5.5 0 0 Yes 53 25 158 G G 40 2.85 9.45 42.13 93.6 6.4 00 No 48 36 169 G G

TABLE 8 Diameter distribution of Percent of fine Chemical component Znmetal grains/Zn grain metal content of Zn Zn alloy Total alloy grains(Ave grain grains among Zn metal grains/Zn grain metal grain CoatInvention diameter) metal grains/ alloy grains fracture content ofthickness Time to red Example (μm) Zn alloy grains (Mass %) surfacescoat (μm) rusting No Fine metal Coarse metal (Vol %) Zn Mg Al Sipresent? (Mass %) Inorganic Organic Inorganic Organic 41 2.94 9.61 7.5694.1 5.9 0 0 Yes 46 19 145 G G 42 2.11 9.85 43.69 93.5 6.5 0 0 Yes 4728.6 167 E E 43 2.68 9.23 44.21 97.6 2.4 0 0 Yes 49 27 169 G G 44 2.999.08 39.51 94.5 5.5 0 0 Yes 83 195 160 E E 45 2.78 9.87 45.68 96.8 3.2 00 No 85 23 159 E E 46 2.96 9.46 65.58 95.4 4.6 0 0 No 90 23 157 E E 472.85 9.28 47.24 94.8 5.2 0 0 Yes 89 18 146 E E 48 2.64 9.45 47.76 97.52.5 0 0 Yes 88 55 148 E E 49 2.35 9.25 45.02 90.0 10.0 0 0 No 47 19 123E E 50 2.12 9.46 47.02 92.5 7.5 0 0 Yes 47 42 213 E E 51 2.34 9.46 7.6691.6 8.4 0 0 No 52 19 215 E E 52 2.33 9.46 15.20 90.8 9.2 0 0 No 52 28.6224 E E 53 2.23 9.06 43.16 88.5 11.5 0 0 Yes 52 27 267 E E 54 2.12 9.3049.33 87.5 12.5 0 0 Yes 88 195 243 E E 55 2.21 8.68 19.47 92.4 7.6 0 0Yes 87 23 74 E E 56 1.38 8.53 69.55 91.6 8.4 0 0 Yes 89 23 63 E E 571.95 9.32 51.41 91.1 8.9 0 0 Yes 90 28.6 65 E E 58 2.26 8.95 75.88 90.69.4 0 0 Yes 91 27 98 E E 59 2.05 12.54 48.08 86.5 13.5 0 0 Yes 46 195 98G G 60 1.65 8.70 66.85 92.5 7.5 0 0 Yes 47 23 97 E E

TABLE 9 Diameter distribution of Percent of fine Chemical component Znmetal grains/Zn grain metal content of Zn Zn alloy Total alloy grains(Ave grain grains among Zn metal grains/Zn grain metal grain CoatInvention diameter) metal grains/ alloy grains fracture content ofthickness Time to red Example (μm) Zn alloy grains (Mass %) surfacescoat (μm) rusting No Fine metal Coarse metal (Vol %) Zn Mg Al Sipresent? (Mass %) Inorganic Organic Inorganic Organic 61 2.35 8.55 7.6891.1 8.9 0 0 Yes 47 23 94 E E 62 1.62 8.91 8.64 90.6 9.4 0 0 Yes 49 1893 E E 63 1.88 9.91 16.58 89.4 10.6 0 0 Yes 50 55 75 G G 64 2.35 9.2535.87 96.0 4.0 0 0 Yes 47 16.5 64 E E 65 2.57 9.56 42.04 97.5 2.5 0 0Yes 48 25.4 62 G G 66 2.56 9.84 38.41 98.4 1.6 0 0 Yes 49 5.8 64 G G 672.21 9.75 6.99 95.5 4.5 0 0 Yes 51 42.5 75 E E 68 2.64 9.85 44.12 96.23.8 0 0 Yes 52 15.6 73 G G 69 2.65 8.56 66.99 98.0 2.0 0 0 Yes 88 8.4 65E E 70 2.94 8.21 43.38 94.5 5.5 0 0 Yes 89 17.6 75 E E 71 2.58 8.3339.75 94.0 6.0 0 0 Yes 87 19.8 73 E E 72 2.37 8.00 65.38 97.5 2.5 0 0Yes 85 22.5 78 E E 73 2.15 9.22 45.46 93.2 6.8 0 0 Yes 83 24.6 125 E E74 2.96 9.36 22.55 94.5 5.5 0 0 Yes 46 23.8 167 G G 75 2.85 9.45 42.1393.6 6.4 0 0 Yes 48 15.2 28 G G 76 2.94 9.61 38.50 94.1 5.9 0 0 Yes 5110.6 34 G G 77 2.11 9.85 64.13 93.5 6.5 0 0 Yes 51 10.7 256 E E 78 2.689.23 44.21 97.6 2.4 0 0 Yes 51 15 24 G G 79 2.99 9.08 39.51 94.5 5.5 0 0Yes 88 10.5 96 E E 80 1.82 2.87 78.64 96.8 3.2 0 0 No 87 14.5 94 E E

TABLE 10 Diameter distribution of Percent of fine Chemical component Znmetal grains/Zn grain metal content of Zn Zn alloy Total alloy grains(Ave grain grains among Zn metal grains/Zn grain metal grain CoatInvention diameter) metal grains/ alloy grains fracture content ofthickness Time to red Example (μm) Zn alloy grains (Mass %) surfacescoat (μm) rusting No Fine metal Coarse metal (Vol %) Zn Mg Al Sipresent? (Mass %) Inorganic Organic Inorganic Organic 81 1.42 9.46 42.0595.4 4.6 0 0 No 85 12.3 93 E E 82 2.12 9.28 64.58 94.8 5.2 0 0 No 82 8.695 E E 83 1.92 9.45 47.76 97.5 2.5 0 0 Yes 86 17.5 92 E E 84 2.11 9.6324.10 96.3 3.7 0 0 Yes 45 12.6 95 E E 85 2.97 9.16 39.11 94.5 5.5 0 0Yes 48 10.4 91 G G 86 2.36 10.39 19.65 95.5 4.5 0 0 Yes 50 10.9 90 E E87 3.05 10.56 65.39 97.3 2.7 0 0 Yes 51 19 99 G G 88 2.15 10.74 48.5795.8 4.2 0 0 Yes 51 25.6 98 E E 89 2.19 10.27 24.91 94.6 5.4 0 0 Yes 7928.6 97 E E 90 2.48 11.50 39.92 94.7 5.3 0 0 No 81 24.7 94 E E 91 2.8511.67 22.65 94.8 5.2 0 0 No 80 22.9 93 E E 92 2.75 11.85 66.20 96.1 3.90 0 No 82 52.3 83 E E 93 2.46 11.38 49.38 97.5 2.5 0 0 Yes 83 56.3 88 EE 94 2.71 12.61 30.58 94.0 6.0 0 0 Yes 46 33.3 89 G G 95 2.36 12.7845.59 95.0 5.0 0 0 Yes 48 34.5 87 G G 96 2.16 9.57 28.32 97.2 2.8 0 0Yes 51 23.5 86 E E 97 2.46 9.81 71.87 99.5 0.5 0 0 Yes 53 26.7 85 E E 982.49 8.43 53.05 94.6 5.4 0 0 Yes 54 38.5 89 E E 99 2.95 8.55 27.74 96.53.5 0 0 Yes 88 45.2 84 E E 100 2.36 8.22 42.75 96.7 3.3 0 0 Yes 89 36.988 E E

TABLE 11 Diameter distribution of Percent of fine Chemical component Znmetal grains/Zn grain metal content of Zn Zn alloy Total alloy grains(Ave grain grains among Zn metal grains/Zn grain metal grain CoatInvention diameter) metal grains/ alloy grains fracture content ofthickness Time to red Example (μm) Zn alloy grains (Mass %) surfacescoat (μm) rusting No Fine metal Coarse metal (Vol %) Zn Mg Al Sipresent? (Mass %) Inorganic Organic Inorganic Organic 101 2.21 9.4423.29 96.5 3.5 0 0 No 90 35.8 86 E E 102 2.25 9.58 61.12 95.5 4.5 0 0Yes 86 34.2 85 E E 103 2.44 9.67 44.30 95.8 4.2 0 0 Yes 85 31.2 83 E E104 2.78 9.83 23.96 96.4 3.6 0 0 Yes 46 37.5 82 G G 105 2.15 10.07 44.0995.7 4.3 0 0 Yes 47 12.5 81 E E 106 2.19 9.45 24.63 95.8 4.2 0 0 Yes 4710.2 89 E E 107 2.48 9.30 62.46 96.8 3.2 0 0 Yes 48 14.5 96 E E 108 2.599.99 45.64 97.1 2.9 0 0 Yes 50 16.3 95 G G 109 2.47 9.58 25.30 96.3 3.70 0 Yes 86 15.8 99 E E 110 2.69 9.40 42.84 94.2 5.8 0 0 Yes 84 13.5 100E E 111 2.57 9.57 25.44 95.6 4.4 0 0 Yes 83 12.7 123 E E 112 2.49 9.5463.27 97.8 2.2 0 0 Yes 82 11.2 89 E E 113 2.68 9.58 46.45 94.5 5.5 0 0Yes 81 16.5 87 E E 114 2.35 9.25 46.45 90.0 10.0 0 0 Yes 46 10.6 86 E E115 2.48 10.04 50.91 92.5 7.5 0 0 No 47 10.7 84 E E 116 2.13 11.27 27.2591.6 8.4 0 0 Yes 48 15 89 E E 117 1.93 11.44 42.26 90.8 9.2 0 0 Yes 5110.5 100 E E 118 2.05 8.90 33.69 88.5 11.5 0 0 Yes 53 14.5 87 G G 1191.42 8.75 48.70 87.5 12.5 0 0 Yes 88 12.3 89 E E 120 1.46 9.44 29.2492.4 7.6 0 0 Yes 85 8.6 85 E E

TABLE 12 Diameter distribution of Percent of fine Chemical component Znmetal grains/Zn grain metal content of Zn Zn alloy Total alloy grains(Ave grain grains among Zn metal grains/Zn grain metal grain CoatInvention diameter) metal grains/ alloy grains fracture content ofthickness Time to red Example (μm) Zn alloy grains (Mass %) surfacescoat (μm) rusting No Fine metal Coarse metal (Vol %) Zn Mg Al Sipresent? (Mass %) Inorganic Organic Inorganic Organic 121 1.75 9.0367.07 91.6 8.4 0 0 Yes 83 17.5 83 E E 122 1.86 8.85 50.25 91.1 8.9 0 0Yes 82 12.6 86 E E 123 1.74 8.95 29.91 90.6 9.4 0 0 Yes 83 10.4 88 E E124 1.96 12.54 87.50 86.5 13.5 0 0 Yes 47 10.9 80 G G 125 1.65 8.7030.58 87.4 12.6 0 0 No 51 19 89 G G 126 2.35 8.55 68.41 88.5 11.5 0 0 No52 25.6 89 G G 127 1.62 10.72 54.59 89.6 10.4 0 0 No 51 28.6 98 G G 1282.25 9.90 34.25 89.4 10.6 0 0 No 52 24.7 96 G G 129 2.36 9.57 37.61 90.69.4 0 0 Yes 89 22.9 94 E E 130 2.24 10.79 45.60 90.3 9.7 0 0 Yes 85 52.3123 E E 131 2.46 10.93 46.70 90.2 9.8 0 0 Yes 82 56.3 156 E E 132 1.5611.02 41.22 91.5 8.5 0 0 Yes 87 33.3 234 E E 133 1.24 11.18 45.68 86.513.5 0 0 Yes 88 34.5 278 E E 134 1.68 11.42 22.02 85.5 14.5 0 0 Yes 4923.5 134 G G 135 2.65 10.80 37.03 89.4 10.6 0 0 Yes 50 26.7 88 G G 1362.22 10.65 28.46 90.6 9.4 0 0 Yes 51 38.5 98 E E 137 2.45 11.34 43.4790.8 9.2 0 0 Yes 52 25.4 97 E E 138 2.23 11.62 35.19 91.6 8.4 0 0 Yes 535.8 94 G G 139 2.26 11.15 73.02 92.4 7.6 0 0 Yes 88 42.5 93 E E 140 2.7212.38 56.20 88.8 11.2 0 0 Yes 85 15.6 75 E E

TABLE 13 Diameter distribution of Percent of fine Chemical component Znmetal grains/Zn grain metal content of Zn Zn alloy Total alloy grains(Ave grain grains among Zn metal grains/Zn grain metal grain CoatInvention diameter) metal grains/ alloy grains fracture content ofthickness Time to red Example (μm) Zn alloy grains (Mass %) surfacescoat (μm) rusting No Fine metal Coarse metal (Vol %) Zn Mg Al Sipresent? (Mass %) Inorganic Organic Inorganic Organic 141 2.13 12.5535.86 85.1 14.9 0 0 Yes 83 8.4 64 E E 142 1.98 9.34 93.45 92.5 7.5 0 0Yes 81 17.6 62 E E 143 2.02 9.58 30.66 90.5 9.5 0 0 Yes 80 19.8 64 E E144 2.21 9.88 74.21 91.4 8.6 0 0 Yes 47 22.5 75 E E 145 2.55 10.00 55.3992.1 7.9 0 0 Yes 49 24.6 73 G G 146 1.92 10.67 30.08 86.3 13.7 0 0 Yes50 23.8 65 G G 147 1.96 11.89 45.09 90.2 9.8 0 0 Yes 51 15.2 97 G G 1482.11 12.03 41.41 89.5 10.5 0 0 No 52 10.6 85 G G 149 2.97 12.12 17.7583.6 16.4 0 0 Yes 83 10.7 65 E E 150 2.36 12.28 32.76 92.4 7.6 0 0 No 8815 78 E E 151 3.05 12.52 30.89 86.5 13.5 0 0 Yes 85 10.5 67 E E 152 2.5711.90 45.90 86.2 13.8 0 0 No 83 14.5 78 E E 153 2.65 11.75 42.22 89.610.4 0 0 Yes 82 12.3 79 E E 154 2.54 12.44 18.56 89.4 10.6 0 0 No 47 8.678 G G 155 2.85 12.03 33.57 90.5 9.5 0 0 Yes 46 17.5 67 G G 156 2.7510.61 31.70 87.2 12.8 0 0 Yes 49 28.6 67 G G 157 2.46 11.30 46.71 92.47.6 0 0 Yes 50 24.7 56 E E 158 2.71 11.58 47.89 91.5 8.5 0 0 Yes 51 22.985 V V 159 2.36 11.11 24.23 91 9 0 0 Yes 83 52.3 89 E E 160 2.16 12.3439.24 88.8 11.2 0 0 Yes 82 56.3 89 E E

TABLE 14 Diameter distribution of Percent of fine Chemical component Znmetal grains/Zn grain metal content of Zn metal Zn alloy Total alloygrains (Ave grain grains among grains/Zn grain metal grain CoatInvention diameter) Zn metal alloy grains fracture content of thicknessTime to red Example (μm) grains/Zn alloy (Mass %) surfaces coat (μm)rusting No Fine metal Coarse metal grains (Vol %) Zn Mg Al Si present?(Mass %) Inorganic Organic Inorganic Organic 161 2.46 12.51 37.37 86.213.8 0 0 Yes 88 33.3 98 E E 162 2.49 11.64 50.38 92.4 7.6 0 0 Yes 8534.5 96 E E 163 1.63 9.16 37.14 90.6 9.4 0 0 Yes 86 23.5 94 E E 164 1.519.46 13.48 91.4 8.6 0 0 Yes 47 26.7 123 E E 165 3.05 9.54 40.05 87.512.5 0 0 No 48 38.5 156 G G 166 2.57 9.56 38.18 88.5 11.5 0 0 No 50 25.4234 G G 167 2.65 9.46 7.63 90.6 9.4 0 0 Yes 51 5.8 278 G G 168 2.5411.99 37.95 91.4 8.6 0 0 Yes 52 42.5 134 G G 169 2.85 12.08 14.29 91.58.5 0 0 Yes 88 15.6 88 E E 170 2.75 12.24 40.86 89.6 10.4 0 0 No 89 42.598 E E 171 2.46 12.48 97.50 89.3 10.7 0 0 No 86 15.6 97 E E 172 2.7111.86 13.30 92.1 7.9 0 0 Yes 87 8.4 94 E E 173 2.36 11.71 43.62 87.512.5 0 0 No 86 17.6 93 E E 174 2.46 11.35 56.93 91.9 7.5 0.6 0 Yes 4622.5 75 E E 175 1.45 12.02 36.59 90.45 9.5 0.05 0 Yes 49 24.6 64 G G 1762.42 13.24 39.95 91.38 8.6 0.02 0 Yes 35 23.8 62 G G 177 2.11 9.46 86.5091.1 7.9 1 0 Yes 37 15.2 64 E E 178 2.97 13.47 32.87 81.1 13.7 5.2 0 No36 10.6 134 G G 179 2.36 9.46 16.23 85.6 9.8 4.6 0 Yes 38 107 167 E E180 3.05 13.87 37.40 89.5 10.5 0 0.001 Yes 48 15 38 G G

TABLE 15 Diameter distribution of Percent of fine Chemical component Znmetal grains/Zn grain metal content of Zn metal Zn alloy Total alloygrains (Ave grain grains among grains/Zn grain metal grain CoatInvention diameter) Zn metal alloy grains fracture content of thicknessTime to red Example (μm) grains/Zn alloy (Mass %) surfaces coat (μm)rusting No Fine metal Coarse metal grains (Vol %) Zn Mg Al Si present?(Mass %) Inorganic Organic Inorganic Organic 181 2.57 13.25 40.76 8316.4 0 0.6 No 46 10.5 268 G G 182 2.65 13.10 87.31 95.3 3.9 0 0.8 Yes 5214.5 256 G G 183 2.12 9.08 92.50 95 2.5 0 2.5 Yes 51 12.3 234 E E 1841.65 9.87 17.93 92.5 6 0 1.5 No 50 8.6 243 E E 185 2.35 9.46 44.50 94.15 0 0.9 Yes 30 17.5 132 E E 186 1.63 9.28 96.50 96.7 2.8 0 0.5 Yes 3812.6 124 E E 187 2.64 9.45 16.94 98.5 0.5 0.3 0.7 Yes 39 10.4 87 G G 1882.35 9.25 88.12 94.58 5.4 0.02 0.005 Yes 83 10.9 95 E E 189 2.31 9.4660.57 95.65 3.5 0.05 0.8 Yes 79 15 97 E E 190 2.62 9.46 39.48 89 3.3 5.22.5 Yes 75 10.5 94 E E 191 2.52 9.46 15.82 94.98 3.5 0.02 1.5 Yes 7614.5 93 E E 192 2.24 13.32 49.57 89.5 5 4.6 0.9 Yes 72 12.3 88 E E 1930.05 6.54 86.52 97.5 2.5 0 0.07 Yes 49 32 83 G G 194 2.42 6.35 90.9893.5 6.5 0 0.11 Yes 51 25 88 E E 195 0.11 7.54 67.32 88.5 11.5 0 0.42Yes 46 36 89 G G 196 1.92 8.64 82.33 97.6 2.4 0 0.65 No 49 19 87 E E 1970.46 6.45 73.76 95.5 4.5 0 0.35 Yes 35 28.6 86 G G 198 0.77 6.48 88.7797.3 2.7 0 2.7 Yes 37 27 85 G G 199 1.55 10.54 80.49 96.5 3.5 0 0.6 Yes36 195 89 E E 200 1.23 12.54 88.60 93.2 6.8 0 1.8 Yes 38 23 84 G G

TABLE 16 Diameter distribution of Percent of fine Chemical component Znmetal grains/Zn grain metal content of Zn metal Zn alloy Total alloygrains (Ave grain grains among grains/Zn grain metal grain CoatInvention diameter) Zn metal alloy grains fracture content of thicknessTime to red Example (μm) grains/Zn alloy (Mass %) surfaces coat (μm)rusting No Fine metal Coarse metal grains (Vol %) Zn Mg Al Si present?(Mass %) Inorganic Organic Inorganic Organic 201 1.45 18.67 53.20 87.612.4 0 1.34 No 48 23 88 G G 202 1.64 19.45 98.71 98.5 1.5 0 0.75 Yes 4618 86 G G 203 0.54 21.55 97.23 87.5 12.5 0 0.43 Yes 52 55 85 G G 2041.85 7.54 70.16 95.4 4.6 5.8 0 No 51 19 83 E E 205 1.42 35.48 82.73 95.24.8 2.7 0 No 50 42 82 G G 206 0.06 65.22 68.54 92.5 7.5 0.6 0 Yes 30 1981 G G 207 1.34 35.47 75.38 98.4 1.6 0.5 0 Yes 38 28.6 89 G G 208 1.5815.24 90.39 97.1 2.9 0.2 0 Yes 39 27 89 G G 209 1.47 13.67 86.71 96.53.5 0.01 0 Yes 83 195 85 E E 210 1.64 6.45 63.05 97.4 2.6 0.06 0 Yes 7923 83 E E 211 1.86 7.54 78.06 94.6 5.4 0.07 0 Yes 75 23 86 E E 212 0.2514.32 98.71 93.6 6.4 0.05 0 Yes 76 25.4 88 E E 213 0.46 45.22 97.23 92.27.8 0.02 0 No 72 5.8 80 E E 214 0.77 48.57 70.16 94.4 5.6 0.65 0 Yes 7142.5 89 E E 215 1.55 99.52 82.73 96.5 3.5 0.78 0 Yes 88 15.6 89 E E 2161.23 13.64 98.71 97.3 2.7 0.99 0 Yes 82 8.4 98 E E 217 1.45 18.54 97.2394.5 5.5 1.76 0 No 83 17.6 96 E E 218 1.64 7.54 70.16 90.6 9.4 7.8 0 Yes81 19.8 94 E E 219 0.54 14.52 82.73 87.4 12.6 9.88 0 Yes 64 22.5 123 G G220 1.85 13.75 86.54 88.4 11.6 4.65 0 Yes 69 24.6 156 G G

TABLE 17 Diameter distribution of Percent of fine Chemical component Znmetal grains/Zn grain metal content of Zn metal Zn alloy Total alloygrains (Ave grain grains among grains/Zn grain metal grain CoatInvention diameter) Zn metal alloy grains fracture content of thicknessTime to red Example (μm) grains/Zn alloy (Mass %) surfaces coat (μm)rusting No Fine metal Coarse metal grains (Vol %) Zn Mg Al Si present?(Mass %) Inorganic Organic Inorganic Organic 221 1.42 16.54 75.20 89.510.5 3.65 0 Yes 83 23.8 234 E E 222 2.3 9.80 82.73 95.2 4.8 8.99 0 Yes50 15.2 95 E E 223 1.8 11.20 97.23 96.4 3.6 0 0.07 Yes 72 10.6 99 E E224 1.92 7.99 38.92 95.3 4.5 0.2 0 Yes 51 32 94 E E 225 1.96 10.89 45.0994.2 5.2 0.6 0 Yes 50 25 92 E E 226 2.25 11.03 41.46 91.45 8.5 0.05 0Yes 30 36 87 E E 227 2.36 6.35 46.12 97.58 2.4 0.02 0 No 38 19 84 E E228 2.24 7.54 46.64 95.9 3.1 1 0 Yes 39 28.6 100 E E 229 2.11 8.64 29.1388.3 6.5 5.2 0 Yes 83 27 99 E E 230 2.97 11.90 41.70 90.5 4.9 4.6 0 Yes79 195 86 G E 231 2.36 11.75 42.22 91.5 8.5 0 0.001 Yes 75 23 97 G E 2323.05 12.44 46.93 86.85 12.5 0.05 0.6 Yes 76 23 32 G E 233 2.57 12.0347.45 83.6 14.6 1 0.8 Yes 72 28.6 55 G E 234 1.88 9.91 12.60 91 6.5 02.5 Yes 71 27 57 E E 235 1.86 7.54 42.51 92.8 5.7 0 1.5 No 82 195 39 E E236 1.57 8.64 43.03 95.7 3.4 0 0.9 Yes 83 23 67 E E 237 2.75 10.71 47.7492.6 6.9 0 0.5 Yes 81 23 78 E E 238 0.54 21.55 97.23 93.4 5.6 0.3 0.7Yes 64 25.4 79 G E 239 1.85 26.87 70.16 96.38 3.6 0.02 0.005 Yes 69 5.882 G E 240 1.42 35.48 82.73 92.12 7.8 0.04 0.04 Yes 83 42.5 81 E E

TABLE 18 Diameter distribution of Percent of fine Chemical component Znmetal grains/Zn grain metal content of Zn Zn alloy Total alloy grains(Ave grain grains among metal grains/Zn grain metal grain Coat Inventiondiameter) Zn metal alloy grains fracture content of thickness Time tored Example (μm) grains/Zn alloy (Mass %) surfaces coat (μm) rusting NoFine metal Coarse metal grains (Vol %) Zn Mg Al Si present? (Mass %)Inorganic Organic Inorganic Organic 241 0.06 65.22 94.81 80.3 16.5 1 2.2Yes 50 15.6 89 G E 242 1.34 35.47 96.54 79.94 18.4 0.06 1.6 Yes 72 19 96G E 243 0.25 14.32 98.71 91.85 2.5 5.6 0.05 Yes 76 42 95 G E 244 0.4645.22 97.23 91.4 4.3 4.2 0.1 Yes 72 23 99 G E 245 0.77 48.57 70.16 89.83.5 6.4 0.3 Yes 46 28.6 100 G E 246 1.55 99.52 82.73 84.9 2.6 9.6 2.9Yes 52 5.8 123 G E 247 1.23 13.64 98.71 88.4 1.5 8.5 1.6 Yes 83 15.2 89E E 248 2.94 9.61 7.56 94.1 5.9 0.65 0.07 Yes 46 19 145 G G 249 2.119.85 95.98 93.5 6.5 0.07 0 Yes 47 28.6 167 E E 250 2.68 9.23 68.91 97.62.4 0.08 2.5 Yes 49 27 169 G G 251 2.74 9.46 46.67 92.5 7.5 1.2 2.9 Yes47 42 213 G G 252 2.13 9.46 7.66 91.6 8.4 1.8 1.8 Yes 52 19 215 E E 2532.82 9.46 15.20 90.8 9.2 9.2 0.5 Yes 52 28.6 224 G G 254 1.88 9.91 16.5889.4 10.6 8.9 0.8 Yes 50 55 75 G G 255 2.35 9.25 35.87 96.0 4.0 0 0.7Yes 47 16.5 64 E E 256 2.57 9.56 42.04 97.5 2.5 0.02 0 Yes 48 25.4 62 GG 257 2.56 9.84 38.41 98.4 1.6 7.8 0 Yes 49 5.8 64 G G 258 2.21 9.756.99 95.5 4.5 0 0.5 Yes 51 42.5 75 E E 259 2.64 9.85 44.12 96.2 3.8 0.080 Yes 52 15.6 73 G G 260 2.68 9.23 44.21 97.6 2.4 2.7 0 No 51 15 24 G G

TABLE 19 Diameter distribution of Percent of fine Chemical component Znmetal grains/Zn grain metal content of Zn Zn alloy Total alloy grains(Ave grain grains among metal grains/Zn grain metal grain Coat Inventiondiameter) Zn metal alloy grains fracture content of thickness Time tored Example (μm) grains/Zn alloy (Mass %) surfaces coat (μm) rusting NoFine metal Coarse metal grains (Vol %) Zn Mg Al Si present? (Mass %)Inorganic Organic Inorganic Organic 261 1.55 9.08 39.51 94.5 5.5 3.7 0Yes 88 10.5 96 E E 262 1.88 9.87 78.64 96.8 3.2 1.8 0 No 87 14.5 94 E E263 1.55 9.46 42.05 95.4 4.6 1.5 0 Yes 85 12.3 93 E E 264 2.85 9.2864.58 94.8 5.2 0 2.9 Yes 82 8.6 95 E E 265 2.64 9.45 47.76 97.5 2.5 02.7 Yes 86 17.5 92 E E 266 2.36 10.39 19.65 95.5 4.5 0 0.05 Yes 50 10.990 E E 267 3.05 10.56 65.39 97.3 2.7 0 0.02 Yes 51 19 99 G G 268 2.5710.74 48.57 95.8 4.2 0 0.08 Yes 51 25.6 98 G G 269 2.65 10.27 24.91 94.65.4 0 1.02 No 79 28.6 97 G E 270 2.54 11.50 39.92 94.7 5.3 0 1.05 No 8124.7 94 G E 271 2.85 11.67 22.65 94.8 5.2 0 0.04 Yes 80 22.9 93 G E 2722.75 11.85 66.20 96.1 3.9 3.6 0.03 Yes 82 52.3 83 G E 273 2.69 9.4042.84 94.2 5.8 0.08 0.06 Yes 84 13.5 100 G E 274 2.57 9.57 25.44 95.64.4 0.6 0.02 Yes 83 12.7 123 G E 275 2.49 9.54 63.27 97.8 2.2 0.2 0.07Yes 82 11.2 89 E E 276 2.68 9.58 46.45 94.5 5.5 0 1.11 Yes 81 16.5 87 GE 277 2.35 9.25 46.45 90.0 10.0 0 1.04 Yes 46 10.6 86 G G 278 2.48 10.0450.91 92.5 7.5 0 0.06 Yes 47 10.7 84 E E 279 1.74 8.95 29.91 90.6 9.4 00.99 No 83 10.4 88 E E 280 2.25 9.90 34.25 89.4 10.6 0 0.45 Yes 52 24.796 E E

TABLE 20 Diameter distribution of Percent of fine Chemical component Znmetal grains/Zn grain metal content of Zn Zn alloy Total alloy grains(Ave grain grains among metal grains/Zn grain metal grain Coat Inventiondiameter) Zn metal alloy grains fracture content of thickness Time tored Example (μm) grains/Zn alloy (Mass %) surfaces coat (μm) rusting NoFine metal Coarse metal grains (Vol %) Zn Mg Al Si present? (Mass %)Inorganic Organic Inorganic Organic 281 2.36 9.57 37.61 90.6 9.4 0.7 0Yes 89 22.9 94 E E 282 2.24 10.79 45.60 90.3 9.7 0.5 0 Yes 85 52.3 123 EE 283 2.23 11.62 35.19 91.6 8.4 0.2 0 Yes 53 5.8 94 G G 284 2.26 11.1573.02 92.4 7.6 0.07 0 Yes 88 42.5 93 E E 285 2.72 12.38 56.20 88.8 11.20.06 0 Yes 85 15.6 75 G E 286 2.11 12.03 41.41 89.5 10.5 0.13 0 No 5210.6 85 G G 287 2.97 12.12 17.75 83.6 16.4 0.65 0 Yes 83 10.7 65 G E 2882.36 12.28 32.76 92.4 7.6 0.27 0 Yes 88 15 78 G E 289 2.75 10.61 31.7087.2 12.8 0.45 0.65 Yes 49 28.6 67 G G 290 2.46 11.30 46.71 92.4 7.60.33 0.99 Yes 50 24.7 56 G G 291 2.71 11.58 47.89 91.5 8.5 1 2.5 Yes 5122.9 85 G G 292 2.36 11.11 24.23 91 9 0.87 1.8 Yes 83 52.3 89 G E 2932.16 12.34 39.24 88.8 11.2 0.07 0 Yes 82 56.3 89 G E 294 2.46 12.5137.37 86.2 13.8 0.27 0 Yes 88 33.3 98 G E 295 2.49 11.64 50.38 92.4 7.60.86 0 No 85 34.5 96 G E 296 2.71 11.86 13.30 92.1 7.9 0.65 0 Yes 87 8.494 G E 297 2.36 11.71 43.62 87.5 12.5 0.43 0 No 86 17.6 93 G E 298 1.9610.89 56.93 91.9 7.5 0.6 0 Yes 46 22.5 75 E E 299 2.25 11.03 36.59 90.459.5 0.05 0 Yes 49 24.6 64 E E 300 2.42 13.24 39.95 91.38 8.6 0.02 0 Yes35 23.8 62 G G

TABLE 21 Diameter distribution of Percent of fine Chemical component Znmetal grains/Zn grain metal content of Zn Zn alloy Total alloy grains(Ave grain grains among metal grains/Zn grain metal grain Coat Inventiondiameter) Zn metal alloy grains fracture content of thickness Time tored Example (μm) grains/Zn alloy (Mass %) surfaces coat (μm) rusting NoFine metal Coarse metal grains (Vol %) Zn Mg Al Si present? (Mass %)Inorganic Organic Inorganic Organic 301 2.96 9.46 44.50 94.1 5 0 0.9 No30 17.5 132 G G 302 2.85 9.28 96.50 96.7 2.8 0 0.5 Yes 38 12.6 124 G G303 2.64 9.45 16.94 98.5 0.5 0.3 0.7 Yes 39 10.4 87 G G 304 2.35 9.2588.12 94.58 5.4 0.02 0.005 Yes 83 10.9 95 E E 305 2.31 9.46 60.57 95.653.5 0.05 0.8 Yes 79 15 97 E E 306 2.62 9.46 39.48 89 3.3 5.2 2.5 Yes 7510.5 94 G E 307 2.52 9.46 15.82 94.98 3.5 0.02 1.5 Yes 76 14.5 93 G E308 2.24 13.32 49.57 89.5 5 4.6 0.9 Yes 72 12.3 88 G E 309 0.06 65.2268.54 92.5 7.5 0.06 0.07 Yes 30 19 81 G G 310 1.34 35.47 75.38 98.4 1.60.99 0.01 Yes 38 28.6 89 G G 311 1.58 15.24 90.39 97.1 2.9 0.54 0.03 Yes39 27 89 G G 312 1.47 9.28 86.71 96.5 3.5 0.02 0.07 Yes 83 195 85 E E313 1.64 9.28 63.05 97.4 2.6 0.07 0.8 Yes 79 23 83 E E 314 1.86 16.5478.06 94.6 5.4 0.09 0.03 Yes 75 23 86 G E 315 0.25 14.32 98.71 93.6 6.41.05 0.99 Yes 76 25.4 88 G E 316 0.46 45.22 97.23 92.2 7.8 2.6 0.54 Yes72 5.8 80 G E 317 0.77 48.57 70.16 94.4 5.6 5.8 0.22 Yes 71 42.5 89 G E318 1.55 99.52 82.73 96.5 3.5 6.8 0.91 Yes 88 15.6 89 G E 319 1.96 10.8945.09 94.2 5.2 0.6 0.43 Yes 50 25 92 E E 320 2.25 11.03 41.46 91.45 8.50.05 0.32 Yes 30 36 87 E E

TABLE 22 Diameter distribution of Percent of fine Chemical component Znmetal grains/Zn grain metal content of Zn Zn alloy Total alloy grains(Ave grain grains among metal grains/Zn grain metal grain Coat Inventiondiameter) Zn metal alloy grains fracture content of thickness Time tored Example (μm) grains/Zn alloy (Mass %) surfaces coat (μm) rusting NoFine metal Coarse metal grains (Vol %) Zn Mg Al Si present? (Mass %)Inorganic Organic Inorganic Organic 321 2.36 12.12 46.12 97.58 2.4 0.020 Yes 38 19 84 G G 322 2.24 9.46 46.64 95.9 3.1 1 0 Yes 39 28.6 100 E E323 2.11 12.52 29.13 88.3 6.5 5.2 0 No 83 27 99 G E 324 2.97 11.90 41.7090.5 4.9 4.6 0 Yes 79 195 86 G E 325 2.36 9.46 42.22 91.5 8.5 0 0.001Yes 75 23 97 E E 326 3.05 12.44 46.93 86.9 12.5 0 0.6 No 76 23 32 G E327 2.57 12.03 47.45 84.6 14.6 0 0.8 Yes 72 28.6 55 G E 328 1.85 26.8770.16 96.38 3.6 0.02 0.005 Yes 69 5.8 82 G G 329 1.42 35.48 82.73 92.127.8 0.04 0.04 Yes 83 42.5 81 G E 330 0.06 65.22 94.81 80.3 16.5 1 2.2Yes 50 15.6 89 G G 331 1.34 35.47 96.54 79.94 18.4 0.06 1.6 Yes 72 19 96G E 332 0.25 14.32 98.71 91.85 2.5 5.6 0.05 Yes 76 42 95 G E 333 0.4645.22 97.23 91.4 4.3 4.2 0.1 Yes 72 23 99 G E 334 0.77 48.57 70.16 89.83.5 6.4 0.3 Yes 46 28.6 100 G G

TABLE 23 Granularity Percent of distribution fine-grain of Zn metalmetal grains/ grains Zn alloy Coating details Zn alloy among Zn grainTotal grains (peak metal Chemical component fracture metal graindiameter) grains/ content of surfaces grain Invention (μm) Zn alloy Znmetal grains/Zn alloy or Ave content Coat Corrosion Example Fine Coarsegrains grains (Mass %) cracks aspect of coat thickness Coating Test Nometal metal (Vol %) Zn Mg Al Si present? ratio (Mass %) Base resin type(μm) method Results 413 2.65 9.56 5.66 100 0 0 0 No — 35 Alkali silicate2 Spray G 414 0.05 6.5 16.55 100 0 0 0 No — 66 Alkyl silicate 37 Spray E415 4.6 65.5 21.55 100 0 0 0 No — 38 Alkali silicate 12 Spray E 416 3.5613.5 5.66 100 0 0 0 No — 84 Alkyl silicate 160 Brush E 417 4.55 16.733.66 100 0 0 0 No — 39 Alkali silicate 5 Brush G 418 2.15 9.89 45.65100 0 0 0 No — 85 Alkyl silicate 12 Brush E 419 3.22 10.55 49.88 100 0 00 No — 36 Alkali silicate 2 Spray G 420 2.99 9.64 42.33 100 0 0 0 No —56 Alkyl silicate 18 Spray E 421 3.65 11.22 65.44 100 0 0 0 No — 42Alkyl silicate 23 Spray E 422 4.55 13.5 77.55 100 0 0 0 No — 31 Epoxyresin 30 Brush E 423 3.57 22.5 96.55 100 0 0 0 No — 88 Acrylic resin 77Brush E 424 1.99 8.56 5.97 100 0 0 0 No — 78 Urethane resin 254 Brush E425 2.12 9.46 87.77 100 0 0 0 No — 36 Polyester resin 47 Spray E 4262.45 11.1 86.55 100 0 0 0 No — 37 Epoxy resin 43 Spray E 427 1.85 8.9215.67 100 0 0 0 No — 45 Acrylic resin 322 Brush E 428 1.65 9.23 31.55100 0 0 0 No — 68 Urethane resin 20 Brush E 429 2.45 9.05 26.76 100 0 00 No — 79 Polyester resin 700 Brush E 430 2.01 10.91 67.89 100 0 0 0 No— 47 Alkali silicate 22 Spray E 431 1.99 11.12 56.89 100 0 0 0 No — 56Alkyl silicate 25 Spray E 432 2.38 10.93 45.67 100 0 0 0 No — 37 Alkalisilicate 14 Spray E 433 2.49 9.34 34.67 100 0 0 0 No — 90 Urethane resin112 Spray E 434 2.34 8.77 95.66 100 0 0 0 No — 43 Alkali silicate 554Spray E

TABLE 24 Granularity Percent of distribution fine-grain of Zn metalmetal grains/ grains Zn alloy Coating details Zn alloy among Zn grainTotal grains (peak metal Chemical component fracture metal graindiameter) grains/ content of surfaces grain Invention (μm) Zn alloy Znmetal grains/Zn alloy or Ave content Coat Corrosion Example Fine Coarsegrains grains (Mass %) cracks aspect of coat thickness Coating Test Nometal metal (Vol %) Zn Mg Al Si present? ratio (Mass %) Base resin type(μm) method Results 435 3.99 27.6 34.21 100 0 0 0 No — 38 Urethane resin150 Spray E 436 1.02 21.9 7.88 100 0 0 0 No — 56 Alkali silicate 18Spray E 437 0.05 22.5 92.32 100 0 0 0 No — 89 Alkyl silicate 657 Brush E438 2.01 17.5 11.22 100 0 0 0 No — 32 Alkyl silicate 24 Spray E 439 1.516.99 55.66 100 0 0 0 No — 55 Urethane resin 99 Spray E 440 2.38 7.6578.99 100 0 0 0 No — 79 Alkyl silicate 7 Spray E 441 1.99 8.56 5.97 1000 0 0 No — 78 Epoxy resin 100 Spray E 442 2.49 9.34 34.67 100 0 0 0 No —77 Alkyl silicate 27 Brush E 443 1.02 21.9 7.88 100 0 0 0 No — 56 Alkalisilicate 15 Spray E 444 2.35 9.25 35.87 88.8 11.2 0 0 Yes 1.12 49 Alkylsilicate 14 Spray E 445 2.57 9.56 42.04 90.6 9.4 0 0 No 1.38 89 Urethaneresin 55 Spray E 446 2.56 9.84 6.55 81.45 18.5 0 0.05 Yes 1.22 90 Alkylsilicate 8 Spray E 447 2.21 9.75 43.60 99.97 0.03 0 0 Yes 1.14 86Urethane resin 122 Brush E 448 2.64 9.85 44.12 98.4 1.6 0 0 No 1.02 48Alkyl silicate 555 Spray E 449 1.99 8.56 37.21 93.2 6.8 0 0 Yes 1.05 47Alkali silicate 19 Spray E 450 2.94 8.21 43.38 84.5 13.9 0 1.6 No 1.3647 Alkyl silicate 25 Brush E 451 2.58 8.33 13.52 98.1 1.9 0 0 Yes 1.1147 Alkyl silicate 58 Spray E 452 2.37 8 44.94 94.3 5.7 0 0 No 1.07 52Alkyl silicate 685 Spray E 453 2.15 9.22 45.46 90.8 9.2 0 0 No 1.42 52Alkali silicate 19 Brush E 454 2.96 9.36 35.96 83.3 15.4 0 1.3 Yes 1.3852 Urethane resin 700 Spray E 455 2.85 9.45 42.13 79.84 18.6 0 1.56 Yes1.22 88 Alkyl silicate 77 Spray E 456 2.94 9.61 7.56 96.4 3.6 0 0 Yes1.14 87 Alkyl silicate 54 Spray E

TABLE 25 Granularity Percent of distribution fine-grain of Zn metalmetal grains/ grains Zn alloy Coating details Zn alloy among Zn grainTotal grains (peak metal Chemical component fracture metal graindiameter) grains/ content of surfaces grain Invention (μm) Zn alloy Znmetal grains/Zn alloy or Ave content Coat Corrosion Example Fine Coarsegrains grains (Mass %) cracks aspect of coat thickness Coating Test Nometal metal (Vol %) Zn Mg Al Si present? ratio (Mass %) Base resin type(μm) method Results 457 2.11 9.85 43.69 94.6 5.4 0 0 Yes 1.13 89 Alkylsilicate 64 Spay E 458 2.68 9.23 44.21 92.4 7.6 0 0 Yes 1.02 90 Alkylsilicate 34 Brush E 459 2.99 9.08 39.51 75.5 24.5 0 0 Yes 1.06 91 Alkalisilicate 28 Spay E 460 2.78 9.87 45.68 82.4 17.6 0 0 Yes 1.05 46Urethane resin 109 Brush E 461 2.96 9.46 65.58 98.6 1.4 0 0 Yes 1.24 47Alkyl silicate 15 Spay E 462 2.85 9.28 47.24 78.5 21.5 0 0 Yes 1.33 47Alkyl silicate 14 Spay E 463 2.64 9.45 47.76 89.6 10.4 0 0 Yes 1.27 49Alkyl silicate 18 Spay E 464 2.35 9.25 45.02 87.2 12.8 0 0 Yes 1.05 50Alkali silicate 2 Spay G 465 2.12 9.46 47.02 92.2 7.8 0 0 Yes 1.22 87Alkyl silicate 37 Spay E 466 2.34 9.46 7.66 70.5 29.5 0 0 Yes 1.13 83Alkali silicate 12 Spay E 467 2.33 9.46 15.20 91.5 8.5 0 0 Yes 1.06 48Alkyl silicate 160 Brush E 468 2.23 9.06 43.16 74.5 25.5 0 0 Yes 1.05 51Alkali silicate 5 Brush E 469 2.12 9.3 49.33 99.93 0.07 0 0 Yes 1.24 51Alkyl silicate 56 Brush E 470 2.21 8.68 19.47 89.2 10.8 0 0 No 1.05 87Alkali silicate 2 Spay E 471 1.38 8.53 69.55 86 11.2 1.6 1.2 No 1.12 85Alkyl silicate 18 Spay E 472 1.95 9.32 51.41 75.23 24.5 0.27 0 Yes 1.3886 Alkyl silicate 23 Spay E 473 2.26 8.95 75.88 82.6 17.4 0 0 Yes 1.1350 Epoxy resin 30 Brush E 474 2.05 12.54 48.08 98.7 1.3 0 0 Yes 1.33 51Acrylic resin 77 Brush E 475 1.65 8.7 66.85 80.5 19.5 0 0 Yes 1.27 51Urethane resin 655 Brush E 476 2.35 8.55 7.68 88.85 10.8 0.05 0.3 No1.23 80 Polyester resin 47 Spay E 477 1.62 8.91 8.64 87.7 11.9 0.4 0 Yes1.11 46 Epoxy resin 43 Spay E 478 1.88 9.91 16.58 90.5 9.5 0 0 Yes 1.4251 Acrylic resin 52 Brush E

TABLE 26 Granularity Percent of distribution fine-grain of Zn metalmetal grains/ grains Zn alloy Coating details Zn alloy among Zn grainTotal grains (peak metal Chemical component fracture metal graindiameter) grains/ content of surfaces grain Invention (μm) Zn alloy Znmetal grains/Zn alloy or Ave content Coat Corrosion Example Fine Coarsegrains grains (Mass %) cracks aspect of coat thickness Coating Test Nometal metal (Vol %) Zn Mg Al Si present? ratio (Mass %) Base resin type(μm) method Results 479 2.35 9.25 35.87 89.5 10.5 0 0 Yes 1.06 86Urethane resin 20 Brush E 480 2.57 9.56 42.04 84.9 15.1 0 0 Yes 1.05 85Polyester resin 200 Brush E 481 2.56 9.84 38.41 83.2 16.8 0 0 Yes 1.0782 Alkali silicate 22 Spray E 482 2.21 9.75 6.99 89.4 10.6 0 0 Yes 1.4281 Alkyl silicate 25 Spray E 483 2.64 9.85 44.12 84.3 13.3 2.4 0 Yes1.38 46 Alkali silicate 14 Spray E 484 2.65 8.56 66.99 98.6 1.4 0 0 No1.22 47 Urethane resin 112 Spray E 485 2.94 8.21 43.38 76.45 23.5 0 0.05Yes 1.14 48 Alkali silicate 24 Spray E 486 2.58 8.33 39.75 91.1 8.9 0 0Yes 1.13 51 Urethane resin 150 Spray E 487 2.37 8 65.38 85.1 14.9 0 0Yes 1.02 53 Alkali silicate 18 Spray E 488 2.15 9.22 45.46 77.48 18.42.55 1.57 Yes 1.06 88 Alkyl silicate 19 Brush E 489 2.96 9.36 22.55 97.92.1 0 0 Yes 1.05 85 Alkyl silicate 24 Spray E 490 2.85 9.45 42.13 94.85.2 0 0 Yes 1.24 83 Urethane resin 99 Spray E 491 2.94 9.61 38.50 84.615.4 0 0 Yes 1.33 82 Alkyl silicate 7 Spray E 492 2.11 9.85 64.13 89.310.7 0 0 Yes 1.27 83 Epoxy resin 100 Spray E 493 2.68 9.23 44.21 83.316.7 0 0 Yes 1.05 47 Alkyl silicate 27 Brush E 494 2.99 9.08 39.51 80.0519.6 0.35 0 No 1.12 51 Alkali silicate 15 Spray E 495 1.82 9.87 78.6485.5 14.5 0 0 No 1.23 52 Alkyl silicate 14 Spray E 496 1.42 9.46 42.0585 14.2 0 0.8 No 1.36 51 Urethane resin 55 Spray E 497 2.12 9.28 64.5887.3 12.7 0 0 No 1.11 52 Alkyl silicate 8 Spray E 498 1.92 9.45 47.7689.5 10.5 0 0 Yes 1.07 89 Urethane resin 122 Brush E 499 2.11 9.63 24.1087.3 11.8 0 0.9 Yes 1.42 85 Alkyl silicate 54 Spray E 500 2.97 9.1639.11 86.4 12.8 0.5 0.3 Yes 1.38 82 Alkali silicate 19 Spray E

TABLE 27 Granularity Percent of distribution fine-grain of Zn metalmetal grains/ grains Zn alloy Coating details Zn alloy among Zn grainTotal grains (peak metal Chemical component fracture metal graindiameter) grains/ content of surfaces grain Invention (μm) Zn alloy Znmetal grains/Zn alloy or Ave content Coat Corrosion Example Fine Coarsegrains grains (Mass %) cracks aspect of coat thickness Coating Test Nometal metal (Vol %) Zn Mg Al Si present? ratio (Mass %) Base resin type(μm) method Results 501 2.36 10.39 19.65 93.8 6.2 0 0 Yes 1.22 87 Alkylsilicate 25 Brush E 502 3.05 10.56 65.39 83.8 16.2 0 0 Yes 1.14 88 Alkylsilicate 58 Spray E 503 2.15 10.74 48.57 80.4 19.6 0 0 Yes 1.13 49 Alkylsilicate 21 Spray E 504 2.19 10.27 24.91 87.6 12.4 0 0 Yes 1.02 50Alkali silicate 19 Brush E 505 2.48 11.5 39.92 89.3 10.7 0 0 Yes 1.06 51Urethane resin 56 Spray E 506 2.85 11.67 22.65 91.5 8.5 0 0 Yes 1.05 52Alkyl silicate 77 Spray E 507 2.75 11.85 66.20 94.9 5.1 0 0 Yes 1.24 53Alkyl silicate 12 Spray E 508 2.46 11.38 49.38 75.5 24.5 0 0 Yes 1.33 88Alkyl silicate 64 Spray E 509 2.71 12.61 30.58 86.5 13.5 0 0 Yes 1.27 85Alkyl silicate 34 Brush E 510 2.36 12.78 45.59 80 20 0 0 Yes 1.05 83Alkali silicate 28 Spray E 511 2.16 9.57 28.32 84.5 15.5 0 0 Yes 1.12 81Urethane resin 109 Brush E 512 2.46 9.81 71.87 88 10.5 1.5 0 Yes 1.23 80Alkyl silicate 15 Spray E 513 2.49 8.43 53.05 92.1 7.9 0 0 Yes 1.36 47Alkyl silicate 14 Spray E 514 2.95 8.55 27.74 95.2 4.8 0 0 Yes 1.11 49Alkyl silicate 18 Spray E 515 2.36 8.22 42.75 81.6 18.4 0 0 Yes 1.07 50Urethane resin 122 Brush E 516 2.21 9.44 23.29 86.8 12.7 0 0.5 Yes 1.4251 Alkyl silicate 54 Spray E 517 2.25 9.58 61.12 89.7 10.3 0 0 No 1.3852 Alkali silicate 19 Spray E 518 2.44 9.67 44.30 71.2 20.8 8 0 Yes 1.2283 Alkyl silicate 25 Brush E 519 2.78 9.83 23.96 97.5 2.5 0 0 No 1.14 88Alkyl silicate 58 Spray E 520 2.15 10.07 44.09 84.8 15.2 0 0 Yes 1.13 85Alkyl silicate 21 Spray E 521 2.19 9.45 24.63 80.8 19.2 0 0 No 1.02 83Alkali silicate 19 Brush E 522 2.48 9.3 62.46 78.7 13.5 7.8 0 Yes 1.0682 Urethane resin 56 Spray E

TABLE 28 Granularity Percent of distribution fine-grain of Zn metalmetal grains/ grains Zn alloy Coating details Zn alloy among Zn grainTotal grains (peak metal Chemical component fracture metal graindiameter) grains/ content of surfaces grain Invention (μm) Zn alloy Znmetal grains/Zn alloy or Ave content Coat Corrosion Example Fine Coarsegrains grains (Mass %) cracks aspect of coat thickness Coating Test Nometal metal (Vol %) Zn Mg Al Si present? ratio (Mass %) Base resin type(μm) method Results 523 2.59 9.99 45.64 88.1 11.9 0 0 No 1.05 47 Alkylsilicate 77 Spray E 524 2.47 9.58 25.30 88.5 10.6 0 0.9 Yes 1.24 46Alkyl silicate 54 Spray E 525 2.69 9.4 42.84 84.6 15.4 0 0 Yes 1.33 49Alkali silicate 2 Spray G 526 2.57 9.57 25.44 97.4 2.6 0 0 Yes 1.27 50Alkali silicate 20 Spray E 527 2.49 9.54 63.27 83.3 16.7 0 0 Yes 1.37 51Alkali silicate 5 Spray G 528 2.68 9.58 46.45 91.9 8.1 0 0 Yes 1.10 83Alkyl silicate 20 Spray E 529 2.35 9.25 46.45 86.3 13.7 0 0 Yes 1.04 82Alkali silicate 15 Brush E 530 2.48 10.04 50.91 81.5 18.5 0 0 Yes 1.0288 Alkyl silicate 57 Brush E 531 2.13 11.27 27.25 97.6 2.4 0 0 Yes 1.0185 Alkali silicate 13 Brush E 532 1.93 11.44 42.26 89.1 10.9 0 0 Yes1.08 86 Alkyl silicate 22 Brush E 533 2.05 8.9 33.69 92.8 7.2 0 0 Yes1.14 47 Alkali silicate 20 Spray E 534 1.42 8.75 48.70 81.96 17.5 0.50.04 No 1.23 48 Alkyl silicate 27 Spray E 535 1.46 9.44 29.24 85.4 14.60 0 No 1.33 50 Alkali silicate 15 Spray E 536 1.75 9.03 67.07 90.6 9.4 00 Yes 1.37 51 Alkyl silicate 35 Spray E 537 1.86 8.85 50.25 92.9 7.1 0 0Yes 1.44 52 Alkali silicate 34 Brush E 538 1.74 8.95 29.91 77.5 22.5 0 0Yes 1.21 88 Alkyl silicate 45 Brush E 539 1.96 12.54 87.50 84.8 13.7 1.50 No 1.22 89 Alkali silicate 52 Brush E 540 1.65 8.7 30.58 87.1 12.9 0 0No 1.23 86 Alkyl silicate 23 Brush E 541 2.35 8.55 68.41 95.7 4.3 0 0Yes 1.47 87 Alkali silicate 5 Spray E 542 1.62 10.72 54.59 80.2 17.6 11.2 No 1.01 86 Alkyl silicate 52 Brush E 543 2.25 9.9 34.25 98.8 0.6 0.60 Yes 1.04 46 Alkali silicate 150 Brush E 544 2.36 9.57 37.61 86.9 10.31.6 1.2 Yes 1.05 49 Alkyl silicate 60 Brush E

TABLE 29 Granularity Percent of distribution fine-grain of Zn metalmetal grains/ grains Zn alloy Coating details Zn alloy among Zn grainTotal grains (peak metal Chemical component fracture metal graindiameter) grains/ content of surfaces grain Invention (μm) Zn alloy Znmetal grains/Zn alloy or Ave content Coat Corrosion Example Fine Coarsegrains grains (Mass %) cracks aspect of coat thickness Coating Test Nometal metal (Vol %) Zn Mg Al Si present? ratio (Mass %) Base resin type(μm) method Results 545 2.24 10.79 45.60 92.98 7 0.02 0 Yes 1.12 35Alkali silicate 15 Spray E 546 2.46 10.93 46.70 75.5 23.5 1 0 Yes 1.1137 Alkyl silicate 24 Spray E 547 1.56 11.02 41.22 82.5 17.5 0 0 No 1.0836 Alkali silicate 34 Spray E 548 1.24 11.18 45.68 80.1 12.4 7.5 0 Yes1.47 38 Alkyl silicate 20 Brush E 549 1.68 11.42 22.02 85.09 14.9 0 0.01Yes 1.50 48 Alkali silicate 200 Brush E 550 2.65 10.8 37.03 78.7 20.7 00.6 No 1.13 46 Alkyl silicate 56 Brush E 551 2.22 10.65 28.46 91.29 8.60 0.11 Yes 1.26 51 Alkali silicate 34 Spray E 552 2.45 11.34 43.47 85.814.2 0 0 Yes 1.14 46 Alkyl silicate 2 Spray G 553 2.23 11.62 35.19 98.120.08 0 1.8 Yes 1.49 38 Alkali silicate 15 Spray E 554 2.26 11.15 73.0283.46 15.2 0 1.34 No 1.34 48 Alkali silicate 10 Spray E 555 2.72 12.3856.20 73.17 17.4 9 0.43 Yes 1.18 52 Alkyl silicate 125 Brush E 556 2.1312.55 35.86 98.6 0.8 0.6 0 Yes 1.17 30 Alkali silicate 24 Brush E 5571.98 9.34 93.45 93.55 6.4 0.05 0 Yes 1.48 76 Alkyl silicate 110 Brush E558 2.02 9.58 30.66 96.78 3.2 0.02 0 No 1.49 72 Alkali silicate 24 BrushE 559 2.21 9.88 74.21 83 9.2 7.8 0 Yes 1.27 81 Alkyl silicate 2 Spray G560 2.55 10 55.39 70.92 19.2 9.88 0 Yes 1.17 64 Alkali silicate 37 SprayE 561 1.92 10.67 30.08 80.25 15.1 4.65 0 Yes 1.16 69 Alkyl silicate 113Brush E 562 1.96 11.89 45.09 81.85 14.5 3.65 0 Yes 1.27 83 Alkalisilicate 2 Spray G 563 2.11 12.03 41.41 89.45 10.5 0.05 0 Yes 1.27 30Alkyl silicate 75 Brush E 564 2.97 12.12 17.75 87.3 7.5 5.2 0 Yes 1.4983 Alkali silicate 30 Brush E 565 2.36 12.28 32.76 93.9 6.1 0 0.001 Yes1.29 75 Alkyl silicate 34 Brush E 566 3.05 12.52 30.89 82.55 16.8 0.050.6 Yes 1.23 76 Epoxy resin 124 Brush E

TABLE 30 Granularity Percent of distribution fine-grain of Zn metalmetal grains/ grains Zn alloy Coating details Zn alloy among Zn grainTotal grains (peak metal Chemical component fracture metal graindiameter) grains/ content of surfaces grain Invention (μm) Zn alloy Znmetal grains/Zn alloy or Ave content Coat Corrosion Example Fine Coarsegrains grains (Mass %) cracks aspect of coat thickness Coating Test Nometal metal (Vol %) Zn Mg Al Si present? ratio (Mass %) Base resin type(μm) method Results 567 2.57 11.9 45.90 70.7 27.5 1 0.8 Yes 1.23 72Acrylic resin 15 Spray E 568 2.65 11.75 42.22 94.6 2.9 0 2.5 Yes 1.23 71Urethane resin 23 Spray E 569 2.54 12.44 18.56 94 4.5 0 1.5 No 1.23 82Polyester resin 157 Brush E 570 2.85 12.03 33.57 99.43 0.07 0 0.5 Yes1.27 81 Epoxy resin 26 Spray E 571 2.75 10.61 31.70 96.82 3.1 0.04 0.04Yes 1.23 83 Acrylic resin 38 Spray E 572 2.46 11.3 46.71 76.3 20.5 1 2.2Yes 1.36 50 Urethane resin 160 Brush E 573 2.71 11.58 47.89 68.84 29.50.06 1.6 Yes 1.11 72 Polyester resin 27 Brush E 574 2.36 11.11 24.2392.33 7.6 0.07 0 Yes 1.02 47 Epoxy resin 180 Brush E 575 2.16 12.3439.24 95.2 0.7 1.2 2.9 Yes 1.05 47 Acrylic resin 26 Spray E 576 2.4612.51 37.37 91.8 4.6 1.8 1.8 Yes 1.24 52 Urethane resin 180 Brush E 5772.49 11.64 50.38 82 8.3 9.2 0.5 Yes 1.33 52 Polyester resin 15 Spray E578 1.63 9.16 37.14 88.2 11.8 0 0 Yes 1.27 50 Epoxy resin 2 Spray G 5791.51 9.46 13.48 86.06 12.9 0 1.04 Yes 1.50 46 Acrylic resin 28 Spray E580 3.05 9.54 40.05 99.34 0.6 0 0.06 Yes 1.13 47 Urethane resin 30 SprayE 581 2.57 9.56 38.18 89.51 9.5 0 0.99 No 1.04 83 Polyester resin 2Spray G 582 2.65 9.46 7.63 88.3 11.7 0 0 Yes 1.02 52 Epoxy resin 157Brush E 583 2.54 11.99 37.95 89.9 9.4 0.7 0 Yes 1.08 89 Acrylic resin 28Brush E 584 2.85 12.08 14.29 87.8 11.7 0.5 0 Yes 1.15 85 Alkyl silicate130 Brush E 585 2.75 12.24 40.86 95.6 4.2 0.2 0 Yes 1.34 53 Alkylsilicate 29 Brush E 586 2.46 12.48 97.50 97.13 2.8 0.07 0 Yes 1.25 88Epoxy resin 30 Brush E 587 2.71 11.86 13.30 86.1 13.9 0 0 Yes 1.19 85Acrylic resin 120 Brush E 588 2.36 11.71 43.62 82.6 14.6 1.6 1.2 No 1.1882 Urethane resin 187 Brush E

TABLE 31 Granularity Percent of distribution fine-grain of Zn metalmetal grains/ grains Zn alloy Coating details Zn alloy among Zn grainTotal grains (peak metal Chemical component fracture metal graindiameter) grains/ content of surfaces grain Invention (μm) Zn alloy Znmetal grains/Zn alloy or Ave content Coat Corrosion Example Fine Coarsegrains grains (Mass %) cracks aspect of coat thickness Coating Test Nometal metal (Vol %) Zn Mg Al Si present? ratio (Mass %) Base resin type(μm) method Results 589 2.46 11.35 56.93 72.95 26.4 0.65 0 Yes 1.24 83Polyester resin 28 Spray E 590 1.45 12.02 36.59 83.23 16.5 0.27 0 Yes1.11 88 Epoxy resin 5 Spray E 591 2.42 13.24 39.95 79.4 19.5 0.45 0.65Yes 1.27 49 Acrylic resin 35 Spray E 592 2.11 9.46 86.50 97.08 1.6 0.330.99 Yes 1.31 50 Urethane resin 5 Spray G 593 2.97 13.47 32.87 90.5 6 12.5 Yes 1.26 51 Polyester resin 200 Brush E 594 2.36 9.46 16.23 88.938.4 0.87 1.8 Yes 1.14 83 Alkali silicate 25 Spray E 595 3.05 13.87 37.4086.7 13.3 0 0 Yes 1.34 82 Alkali silicate 15 Spray E 596 2.57 13.2540.76 81.4 18.6 0. 0 Yes 1.16 88 Alkyl silicate 20 Spray E 597 2.65 13.187.31 97.34 1.8 0.86 0 No 1.47 85 Alkali silicate 18 Spray E 598 2.129.08 92.50 95.25 4.1 0.65 0 Yes 1.48 87 Alkyl silicate 22 Spray E 5991.65 9.87 17.93 82.87 16.7 0.43 0 No 1.49 86 Alkali silicate 19 Spray E600 2.35 9.46 44.50 99 0.4 0.6 0 Yes 1.34 46 Alkyl silicate 29 Spray E601 1.63 9.28 96.50 89.35 10.6 0.05 0 Yes 1.29 49 Alkali silicate 23Spray E 602 2.64 9.45 16.94 93.08 6.9 0.02 0 Yes 1.18 35 Alkyl silicate21 Spray E 603 2.35 9.25 88.12 99.82 0.05 0.06 0.07 Yes 1.48 30 Alkalisilicate 19 Spray E 604 2.31 9.46 60.57 91.56 6.4 1.05 0.99 Yes 1.27 76Alkyl silicate 15 Spray E 605 2.62 9.46 39.48 93.36 3.5 2.6 0.54 Yes1.17 72 Alkali silicate 18 Spray E 606 2.52 9.46 15.82 82.13 17.5 0.050.32 Yes 1.27 30 Alkyl silicate 22 Spray E 607 2.24 13.32 49.57 91.2 3.65.2 0 No 1.27 83 Alkyl silicate 21 Spray E 608 0.05 6.54 86.52 94.1 5.90 0.001 Yes 1.48 75 Alkyl silicate 29 Spray E 609 2.42 6.35 90.98 83.216.2 0 0.6 No 1.49 76 Alkali silicate 23 Spray E 610 0.11 7.54 67.3276.7 22.5 0 0.8 Yes 1.34 72 Alkyl silicate 21 Spray E

TABLE 32 Granularity Percent of distribution fine-grain of Zn metalmetal grains/ grains Zn alloy Coating details Zn alloy among Zn grainTotal grains (peak metal Chemical component fracture metal graindiameter) grains/ content of surfaces grain Invention (μm) Zn alloy Znmetal grains/Zn alloy or Ave content Coat Corrosion Example Fine Coarsegrains grains (Mass %) cracks aspect of coat thickness Coating Test Nometal metal (Vol %) Zn Mg Al Si present? ratio (Mass %) Base resin type(μm) method Results 611 1.92 8.64 82.33 96.52 3.4 0.04 0.04 Yes 1.23 83Alkali silicate 19 Spray E 612 0.46 6.45 73.76 68.3 26.5 3 2.2 Yes 1.2350 Alkyl silicate 21 Spray E 613 0.77 6.48 88.77 72.84 25.5 0.06 1.6 Yes1.23 72 Alkali silicate 19 Spray E 614 2.35 9.25 45.02 87.2 12.8 0 0 Yes1.05 50 Acrylic resin 654 Spray E 615 2.33 9.46 15.2 91.5 8.5 0 0 Yes1.06 48 Alkali silicate 700 Spray E 616 1.95 9.32 51.41 75.23 24.5 0.270 Yes 1.38 75 Alkyl silicate 555 Spray E 617 2.15 9.22 45.46 77.48 18.42.55 1.57 Yes 1.06 55 Alkyl silicate 321 Spray E 618 2.23 11.62 35.1972.62 0.08 25.5 1.8 Yes 1.49 38 Alkyl silicate 152 Brush E 619 2.2611.15 73.02 64.06 15.2 19.4 1.34 No 1.34 48 Urethane resin 674 Spray E620 1.98 9.34 93.45 83 6.4 10.6 0 Yes 1.48 76 Polyester resin 325 SprayE 621 2.02 9.58 30.66 86.4 3.2 10.4 0 No 1.49 72 Alkyl silicate 665Spray E 622 2.36 12.28 32.76 80.4 6.1 13.5 0.001 Yes 1.29 75 Alkylsilicate 354 Brush E 623 3.05 12.52 30.89 70.1 16.8 12.5 0.6 Yes 1.23 76Alkyl silicate 165 Spray E 624 2.57 11.9 45.9 60.9 27.5 10.8 0.8 Yes1.23 72 Urethane resin 354 Spray E

TABLE 33 Granularity Percent of distribution fine-grain of Zn metalmetal grains/ grains Zn alloy Coating details Zn alloy among Zn grainTotal grains (Ave metal Chemical component fracture metal graindiameter) grains/ content of surfaces grain Invention (μm) Zn alloy Znmetal grains/Zn alloy or Ave content Coat Corrosion Example Fine Coarsegrains grains (Mass %) cracks aspect of coat thickness Coating Test Nometal metal (Vol %) Zn Mg Al Si present? ratio (Mass %) Base resin type(μm) method Results 625 2.65 9.56 5.66 100 0 0 0 N — 35 Alkali silicate2 Spray G 626 0.05 6.5 16.55 100 0 0 0 N — 66 Alkyl silicate 37 Spray E627 4.6 65.5 21.55 100 0 0 0 N — 38 Alkali silicate 12 Spray E 628 3.5613.5 5.66 100 0 0 0 N — 84 Alkyl silicate 160 Brush E 629 4.55 16.733.66 100 0 0 0 N — 39 Alkali silicate 5 Brush G 630 2.15 9.89 45.65 1000 0 0 N — 85 Alkyl silicate 12 Brush E 631 3.22 10.55 49.88 100 0 0 0 N— 36 Alkali silicate 2 Spray G 632 2.99 9.64 42.33 100 0 0 0 N — 56Alkyl silicate 18 Spray E 633 3.65 11.22 65.44 100 0 0 0 N — 42 Alkylsilicate 23 Spray E 634 4.55 13.5 77.55 100 0 0 0 N — 31 Epoxy resin 30Brush E 635 3.57 22.5 96.55 100 0 0 0 N — 88 Acrylic resin 77 Brush E636 1.99 8.56 5.97 100 0 0 0 N — 78 Urethane resin 254 Brush E 637 2.129.46 87.77 100 0 0 0 N — 36 Polyester resin 47 Spray E 638 2.45 11.186.55 100 0 0 0 N — 37 Epoxy resin 43 Spray E 639 1.85 8.92 15.67 100 00 0 N — 45 Acrylic resin 322 Brush E 640 1.65 9.23 31.55 100 0 0 0 N —68 Urethane resin 20 Brush E 641 2.45 9.05 26.76 100 0 0 0 N — 79Polyester resin 700 Brush E 642 2.01 10.91 67.89 100 0 0 0 N — 47 Alkalisilicate 22 Spray E 643 1.99 11.12 56.89 100 0 0 0 N — 56 Alkyl silicate25 Spray E 644 2.38 10.93 45.67 100 0 0 0 N — 37 Alkali silicate 14Spray E

TABLE 34 Granularity Percent of distribution fine-grain of Zn metalmetal grains/ grains Zn alloy Coating details Zn alloy among Zn grainTotal grains (Ave metal Chemical component fracture metal graindiameter) grains/ content of surfaces grain Invention (μm) Zn alloy Znmetal grains/Zn alloy or Ave content Coat Corrosion Example Fine Coarsegrains grains (Mass %) cracks aspect of coat thickness Coating Test Nometal metal (Vol %) Zn Mg Al Si present? ratio (Mass %) Base resin type(μm) method Results 645 2.49 9.34 34.67 100 0 0 0 No — 90 Urethane resin112 Spray E 646 2.34 8.77 95.66 100 0 0 0 No — 43 Alkali silicate 554Spray E 647 3.99 27.60 34.21 100 0 0 0 No — 38 Urethane resin 150 SprayE 648 1.02 21.90 7.88 100 0 0 0 No — 56 Alkali silicate 18 Spray E 6490.05 22.50 92.32 100 0 0 0 No — 89 Alkyl silicate 657 Brush E 650 2.0117.50 11.22 100 0 0 0 No — 32 Alkyl silicate 24 Spray E 651 1.51 6.9955.66 100 0 0 0 No — 55 Urethane resin 99 Spray E 652 2.38 7.65 78.99100 0 0 0 No — 79 Alkyl silicate 7 Spray E 653 1.99 8.56 5.97 100 0 0 0No — 78 Epoxy resin 100 Spray E 654 2.49 9.34 34.67 100 0 0 0 No — 77Alkyl silicate 27 Brush E 655 1.02 21.9 7.88 100 0 0 0 No — 56 Alkalisilicate 15 Spray E 656 2.35 9.25 35.87 88.8 11.2 0 0 Yes 1.12 49 Alkylsilicate 14 Spray E 657 2.57 9.56 42.04 90.6 9.4 0 0 No 1.38 89 Urethaneresin 55 Spray E 658 2.56 9.84 6.55 81.45 18.5 0 0.05 Yes 1.22 90 Alkylsilicate 8 Spray E 659 2.21 9.75 43.60 99.97 0.03 0 0 Yes 1.14 86Urethane resin 122 Brush E 660 2.64 9.85 44.12 98.4 1.6 0 0 No 1.02 48Alkyl silicate 555 Spray E 661 1.99 8.56 37.21 93.2 6.8 0 0 Yes 1.05 47Alkali silicate 19 Spray E 662 2.94 8.21 43.38 84.5 13.9 0 1.6 No 1.3647 Alkyl silicate 25 Brush E 663 2.58 8.33 13.52 98.1 1.9 0 0 Yes 1.1147 Alkyl silicate 58 Spray E 664 2.37 8.00 44.94 94.3 5.7 0 0 No 1.07 52Alkyl silicate 685 Spray E

TABLE 35 Granularity Percent of distribution fine-grain of Zn metalmetal grains/ grains Zn alloy Coating details Zn alloy among Zn grainTotal grains (Ave metal Chemical component fracture metal graindiameter) grains/ content of surfaces grain Invention (μm) Zn alloy Znmetal grains/Zn alloy or Ave content Coat Corrosion Example Fine Coarsegrains grains (Mass %) cracks aspect of coat thickness Coating Test Nometal metal (Vol %) Zn Mg Al Si present? ratio (Mass %) Base resin type(μm) method Results 665 2.15 9.22 45.46 90.8 9.2 0 0 No 1.42 52 Alkalisilicate 19 Brush E 666 2.96 9.36 35.96 83.3 15.4 0 1.3 Yes 1.38 52Urethane resin 700 Spray E 667 2.85 9.45 42.13 79.84 18.6 0 1.56 Yes1.22 88 Alkyl silicate 77 Spray E 668 2.94 9.61 7.56 96.4 3.6 0 0 Yes1.14 87 Alkyl silicate 54 Spray E 669 2.11 9.85 43.69 94.6 5.4 0 0 Yes1.13 89 Alkyl silicate 64 Spray E 670 2.68 9.23 44.21 92.4 7.6 0 0 Yes1.02 90 Alkyl silicate 34 Brush E 671 2.99 9.08 39.51 75.5 24.5 0 0 Yes1.06 91 Alkali silicate 28 Spray E 672 2.78 9.87 45.68 82.4 17.6 0 0 Yes1.05 46 Urethane resin 109 Brush E 673 2.96 9.46 65.58 98.6 1.4 0 0 Yes1.24 47 Alkyl silicate 15 Spray E 674 2.85 9.28 47.24 78.5 21.5 0 0 Yes1.33 47 Alkyl silicate 14 Spray E 675 2.64 9.45 47.76 89.6 10.4 0 0 Yes1.27 49 Alkyl silicate 18 Spray E 676 2.35 9.25 45.02 87.2 12.8 0 0 Yes1.05 50 Alkali silicate 2 Spray G 677 2.12 9.46 47.02 92.2 7.8 0 0 Yes1.22 87 Alkyl silicate 37 Spray E 678 2.34 9.46 7.66 70.5 29.5 0 0 Yes1.13 83 Alkali silicate 12 Spray E 679 2.33 9.46 15.20 91.5 8.5 0 0 Yes1.06 48 Alkyl silicate 160 Brush E 680 2.23 9.06 43.16 74.5 25.5 0 0 Yes1.05 51 Alkali silicate 5 Brush G 681 2.12 9.3 49.33 99.93 0.07 0 0 Yes1.24 51 Alkyl silicate 56 Brush E 682 2.21 8.68 19.47 89.2 10.8 0 0 No1.05 87 Alkali silicate 2 Spray G 683 1.38 8.53 69.55 86 11.2 1.6 1.2 No1.12 85 Alkyl silicate 18 Spray E 684 1.95 9.32 51.41 75.23 24.5 0.27 0Yes 1.38 86 Alkyl silicate 23 Spray E

TABLE 36 Granularity Percent of distribution fine-grain of Zn metalmetal grains/ grains Zn alloy Coating details Zn alloy among Zn grainTotal grains (Ave metal Chemical component fracture metal graindiameter) grains/ content of surfaces grain Invention (μm) Zn alloy Znmetal grains/Zn alloy or Ave content Coat Corrosion Example Fine Coarsegrains grains (Mass %) cracks aspect of coat thickness Coating Test Nometal metal (Vol %) Zn Mg Al Si present? ratio (Mass %) Base resin type(μm) method Results 686 2.05 12.54 48.08 98.7 1.3 0 0 Yes 1.33 51Acrylic resin 77 Brush E 687 1.65 8.7 66.85 80.5 19.5 0 0 Yes 1.27 51Urethane resin 655 Brush E 688 2.35 8.55 7.68 88.85 10.8 0.05 0.3 No1.23 80 Polyester resin 47 Spray E 689 1.62 8.91 8.64 87.7 11.9 0.4 0Yes 1.11 46 Epoxy resin 43 Spray E 690 1.88 9.91 16.58 90.5 9.5 0 0 Yes1.42 51 Acrylic resin 52 Brush E 691 2.35 9.25 35.87 89.5 10.5 0 0 Yes1.06 86 Urethane resin 20 Brush E 692 2.57 9.56 42.04 84.9 15.1 0 0 Yes1.05 85 Polyester resin 200 Brush E 693 2.56 9.84 38.41 83.2 16.8 0 0Yes 1.07 82 Alkali silicate 22 Spray E 694 2.21 9.75 6.99 89.4 10.6 0 0Yes 1.42 81 Alkyl silicate 25 Spray E 695 2.64 9.85 44.12 84.3 13.3 2.40 Yes 1.38 46 Alkali silicate 14 Spray E 696 2.65 8.56 66.99 98.6 1.4 00 No 1.22 47 Urethane resin 112 Spray E 697 2.94 8.21 43.38 76.45 23.5 00.05 Yes 1.14 48 Alkali silicate 24 Spray E 698 2.58 8.33 39.75 91.1 8.90 0 Yes 1.13 51 Urethane resin 150 Spray E 699 2.37 8 65.38 85.1 14.9 00 Yes 1.02 53 Alkali silicate 18 Spray E 700 2.15 9.22 45.46 77.48 18.42.55 1.57 Yes 1.06 88 Alkyl silicate 19 Brush E 701 2.96 9.36 22.55 97.92.1 0 0 Yes 1.05 85 Alkyl silicate 24 Spray E 702 2.85 9.45 42.13 94.85.2 0 0 Yes 1.24 83 Urethane resin 99 Spray E 703 2.94 9.61 38.50 84.615.4 0 0 Yes 1.33 82 Alkyl silicate 7 Spray E 704 2.11 9.85 64.13 89.310.7 0 0 Yes 1.27 83 Epoxy resin 100 Spray E 705 2.68 9.23 44.21 83.316.7 0 0 Yes 1.05 47 Alkyl silicate 27 Brush E

TABLE 37 Granularity Percent of distribution fine-grain of Zn metalmetal grains/ grains Zn alloy Coating details Zn alloy among Zn grainTotal grains (Ave metal Chemical component fracture metal graindiameter) grains/ content of surfaces grain Invention (μm) Zn alloy Znmetal grains/Zn alloy or Ave content Coat Corrosion Example Fine Coarsegrains grains (Mass %) cracks aspect of coat thickness Coating Test Nometal metal (Vol %) Zn Mg Al Si present? ratio (Mass %) Base resin type(μm) method Results 706 2.99 9.08 39.51 80.05 19.6 0.35 0 No 1.12 51Alkali silicate 15 Spray E 707 1.82 9.87 78.64 85.5 14.5 0 0 No 1.23 52Alkyl silicate 14 Spray E 708 1.42 9.46 42.05 85 14.2 0 0.8 No 1.36 51Urethane resin 55 Spray E 709 2.12 9.28 64.58 87.3 12.7 0 0 No 1.11 52Alkyl silicate 8 Spray E 710 1.92 9.45 47.76 89.5 10.5 0 0 Yes 1.07 89Urethane resin 122 Brush E 711 2.11 9.63 24.10 87.3 11.8 0 0.9 Yes 1.4285 Alkyl silicate 54 Spray E 712 2.97 9.16 39.11 86.4 12.8 0.5 0.3 Yes1.38 82 Alkali silicate 19 Spray E 713 2.36 10.39 19.65 93.8 6.2 0 0 Yes1.22 87 Alkyl silicate 25 Brush E 714 3.05 10.56 65.39 83.8 16.2 0 0 Yes1.14 88 Alkyl silicate 58 Spray E 715 2.15 10.74 48.57 80.4 19.6 0 0 Yes1.13 49 Alkyl silicate 21 Spray E 716 2.19 10.27 24.91 87.6 12.4 0 0 Yes1.02 50 Alkali silicate 19 Brush E 717 2.48 11.5 39.92 89.3 10.7 0 0 Yes1.06 51 Urethane resin 56 Spray E 718 2.85 11.67 22.65 91.5 8.5 0 0 Yes1.05 52 Alkyl silicate 77 Spray E 719 2.75 11.85 66.20 94.9 5.1 0 0 Yes1.24 53 Alkyl silicate 12 Spray E 720 2.46 11.38 49.38 75.5 24.5 0 0 Yes1.33 88 Alkyl silicate 64 Spray E 721 2.71 12.61 30.58 86.5 13.5 0 0 Yes1.27 85 Alkyl silicate 34 Brush E 722 2.36 12.78 45.59 80 20 0 0 Yes1.05 83 Alkali silicate 28 Spray E 723 2.16 9.57 28.32 84.5 15.5 0 0 Yes1.12 81 Urethane resin 109 Brush E 724 2.46 9.81 71.87 88 10.5 1.5 0 Yes1.23 80 Alkyl silicate 15 Spray E 725 2.49 8.43 53.05 92.1 7.9 0 0 Yes1.36 47 Alkyl silicate 14 Spray E

TABLE 38 Percent of Granularity fine-grain distribution of metal Znmetal grains Zn alloy Coating details grains/Zn alloy among Zn Chemicalcomponent grain Total grains (Ave metal content of Zn metal fracturemetal grain diameter) grains/ grains/Zn alloy surfaces grain Invention(μm) Zn alloy grains or Ave content Coat Corrosion Example Fine Coarsegrains (Mass %) cracks aspect of coat thickness Coating Test No metalmetal (Vol %) Zn Mg Al Si present? ratio (Mass %) Base resin type (μm)method Results 726 2.95 8.55 27.74 95.2 4.8 0 0 Yes 1.11 49 Alkylsilicate Spray E 727 2.36 8.22 42.75 81.6 18.4 0 0 Yes 1.07 50 Urethaneresin 122 Brush E 728 2.21 9.44 23.29 86.8 12.7 0 0.5 Yes 1.42 51 Alkylsilicate 54 Spray E 729 2.25 9.58 61.12 89.7 10.3 0 0 No 1.38 52 Alkalisilicate 19 Spray E 730 2.44 9.67 44.30 71.2 20.8 8 0 Yes 1.22 83 Alkylsilicate 25 Brush E 731 2.78 9.83 23.96 97.5 2.5 0 0 No 1.14 88 Alkylsilicate 58 Spray E 732 2.15 10.07 44.09 84.8 15.2 0 0 Yes 1.13 85 Alkylsilicate 21 Spray E 733 2.19 9.45 24.63 80.8 19.2 0 0 No 1.02 83 Alkalisilicate 19 Brush E 734 2.48 9.3 62.46 78.7 13.5 7.8 0 Yes 1.06 82Urethane resin 56 Spray E 735 2.59 9.99 45.64 88.1 11.9 0 0 No 1.05 47Alkyl silicate 77 Spray E 736 2.47 9.58 25.30 88.5 10.6 0 0.9 Yes 1.2446 Alkyl silicate 54 Spray E 737 2.69 9.4 42.84 84.6 15.4 0 0 Yes 1.3349 Alkali silicate 2 Spray E 738 2.57 9.57 25.44 97.4 2.6 0 0 Yes 1.2750 Alkali silicate 20 Spray E 739 2.49 9.54 63.27 83.3 16.7 0 0 Yes 1.3751 Alkali silicate 5 Spray E 740 2.68 9.58 46.45 91.9 8.1 0 0 Yes 1.1083 Alkyl silicate 20 Spray E 741 2.35 9.25 46.45 86.3 13.7 0 0 Yes 1.0482 Alkali silicate 15 Brush E 742 2.48 10.04 50.91 81.5 18.5 0 0 Yes1.02 88 Alkyl silicate 57 Brush E 743 2.13 11.27 27.25 97.6 2.4 0 0 Yes1.01 85 Alkali silicate 13 Brush E 744 1.93 11.44 42.26 89.1 10.9 0 0Yes 1.08 86 Alkyl silicate 22 Brush E 745 2.05 8.9 33.69 92.8 7.2 0 0Yes 1.14 47 Alkali silicate 20 Spray E 746 1.42 8.75 48.70 81.96 17.50.5 0.04 No 1.23 48 Alkyl silicate 27 Spray E

TABLE 39 Percent of Granularity fine-grain distribution of metal Znmetal grains Zn alloy Coating details grains/Zn alloy among Zn Chemicalcomponent grain Total grains (Ave metal content of Zn metal fracturemetal grain diameter) grains/ grains/Zn alloy surfaces grain Invention(μm) Zn alloy grains or Ave content Coat Corrosion Example Fine Coarsegrains (Mass %) cracks aspect of coat thickness Coating Test No metalmetal (Vol %) Zn Mg Al Si present? ratio (Mass %) Base resin type (μm)method Results 747 1.46 9.44 29.24 85.4 14.6 0 0 No 1.33 50 Alkalisilicate 15 Spray E 748 1.75 9.03 67.07 90.6 9.4 0 0 Yes 1.37 51 Alkylsilicate 35 Spray E 749 1.86 8.85 50.25 92.9 7.1 0 0 Yes 1.44 52 Alkalisilicate 34 Brush E 750 1.74 8.95 29.91 77.5 22.5 0 0 Yes 1.21 88 Alkylsilicate 45 Brush E 751 1.96 12.54 87.50 84.8 13.7 1.5 0 No 1.22 89Alkali silicate 52 Brush E 752 1.65 8.7 30.58 87.1 12.9 0 0 No 1.23 86Alkyl silicate 23 Brush E 753 2.35 8.55 68.41 95.7 4.3 0 0 Yes 1.47 87Alkali silicate 5 Spray E 754 1.62 10.72 54.59 80.2 17.6 1 1.2 No 1.0186 Alkyl silicate 52 Brush E 755 2.25 9.9 34.25 98.8 0.6 0.6 0 Yes 1.0446 Alkali silicate 150 Brush E 756 2.36 9.57 37.61 86.9 10.3 1.6 1.2 Yes1.05 49 Alkyl silicate 60 Brush E 757 2.24 10.79 45.60 92.98 7 0.02 0Yes 1.12 35 Alkali silicate 15 Spray E 758 2.46 10.93 46.70 75.5 23.5 10 Yes 1.11 37 Alkyl silicate 24 Spray E 759 1.56 11.02 41.22 82.5 17.5 00 No 1.08 36 Alkali silicate 34 Spray E 760 1.24 11.18 45.68 80.1 12.47.5 0 Yes 1.47 38 Alkyl silicate 20 Brush E 761 1.68 11.42 22.02 85.0914.9 0 0.01 Yes 1.50 48 Alkali silicate 200 Brush E 762 2.65 10.8 37.0378.7 20.7 0 0.6 No 1.13 46 Alkyl silicate 56 Brush E 763 2.22 10.6528.46 91.29 8.6 0 0.11 Yes 1.26 51 Alkali silicate 34 Spray E 764 2.4511.34 43.47 85.8 14.2 0 0 Yes 1.14 46 Alkyl silicate 2 Spray G 765 2.2311.62 35.19 98.12 0.08 0 1.8 Yes 1.49 38 Alkali silicate 15 Spray E 7662.26 11.15 73.02 83.46 15.2 0 1.34 No 1.34 48 Alkali silicate 10 Spray E

TABLE 40 Percent of Granularity fine-grain distribution of metal Znmetal grains Zn alloy Coating details grains/Zn alloy among Zn Chemicalcomponent grain Total grains (Ave metal content of Zn metal fracturemetal grain diameter) grains/ grains/Zn alloy surfaces grain Invention(μm) Zn alloy grains or Ave content Coat Corrosion Example Fine Coarsegrains (Mass %) cracks aspect of coat thickness Coating Test No metalmetal (Vol %) Zn Mg Al Si present? ratio (Mass %) Base resin type (μm)method Results 767 2.72 12.38 56.20 73.17 17.4 9 0.43 Yes 1.18 52 Alkylsilicate 125 Brush E 768 2.13 12.55 35.86 98.6 0.8 0.6 0 Yes 1.17 30Alkali silicate 24 Brush E 769 1.98 9.34 93.45 93.55 6.4 0.05 0 Yes 1.4876 Alkyl silicate 110 Brush E 770 2.02 9.58 30.66 96.78 3.2 0.02 0 No1.49 72 Alkali silicate 24 Brush E 771 2.21 9.88 74.21 83 9.2 7.8 0 Yes1.27 81 Alkyl silicate 2 Spray G 772 2.55 10 55.39 70.92 19.2 9.88 0 Yes1.17 64 Alkali silicate 37 Spray E 773 1.92 10.67 30.08 80.25 15.1 4.650 Yes 1.16 69 Alkyl silicate 113 Brush E 774 1.96 11.89 45.09 81.85 14.53.65 0 Yes 1.27 83 Alkali silicate 2 Spray G 775 2.11 12.03 41.41 89.4510.5 0.05 0 Yes 1.27 30 Alkyl silicate 75 Brush E 776 2.97 12.12 17.7587.3 7.5 5.2 0 Yes 1.49 83 Alkali silicate 30 Brush E 777 2.36 12.2832.76 93.9 6.1 0 0.001 Yes 1.29 75 Alkyl silicate 34 Brush E 778 3.0512.52 30.89 82.55 16.8 0.05 0.6 Yes 1.23 76 Epoxy resin 124 Brush E 7792.57 11.9 45.90 70.7 27.5 1 0.8 Yes 1.23 72 Acrylic Resin 15 Spray E 7802.65 11.75 42.22 94.6 2.9 0 2.5 Yes 1.23 71 Urethane Resin 23 Spray E781 2.54 12.44 18.56 94 4.5 0 1.5 No 1.23 82 Polyester resin 157 Brush E782 2.85 12.03 33.57 99.43 0.07 0 0.5 Yes 1.27 81 Epoxy resin 26 Spray E783 2.75 10.61 31.70 96.82 3.1 0.04 0.04 Yes 1.23 83 Acrylic resin 38Spray E 784 2.46 11.3 46.71 76.3 20.5 1 2.2 Yes 1.36 50 Urethane resin160 Brush E 785 2.71 11.58 47.89 68.84 29.5 0.06 1.6 Yes 1.11 72Polyester resin 27 Brush E 786 2.36 11.11 24.23 92.33 7.6 0.07 0 Yes1.02 47 Epoxy resin 180 Brush E

TABLE 41 Percent of Granularity fine-grain distribution of metal Znmetal grains Zn alloy Coating details grains/Zn alloy among Zn Chemicalcomponent grain Total grains (Ave metal content of Zn metal fracturemetal grain diameter) grains/ grains/Zn alloy surfaces grain Invention(μm) Zn alloy grains or Ave content Coat Corrosion Example Fine Coarsegrains (Mass %) cracks aspect of coat thickness Coating Test No metalmetal (Vol %) Zn Mg Al Si present? ratio (Mass %) Base resin type (μm)method Results 788 2.46 12.51 37.37 91.8 4.6 1.8 1.8 Yes 1.24 52Urethane resin 180 Brush E 789 2.49 11.64 50.38 82 8.3 9.2 0.5 Yes 1.3352 Polyester resin 15 Spray E 790 1.63 9.16 37.14 88.2 11.8 0 0 Yes 1.2750 Epoxy resin 2 Spray G 791 1.51 9.46 13.48 86.06 12.9 0 1.04 Yes 1.5046 Acrylic resin 28 Spray E 792 3.05 9.54 40.05 99.34 0.6 0 0.06 Yes1.13 47 Urethane resin 30 Spray E 793 2.57 9.56 38.18 89.51 9.5 0 0.99No 1.04 83 Polyester resin 2 Spray G 794 2.65 9.46 7.63 88.3 11.7 0 0Yes 1.02 52 Epoxy resin 157 Brush E 795 2.54 11.99 37.95 89.9 9.4 0.7 0Yes 1.08 89 Acrylic resin 28 Brush E 796 2.85 12.08 14.29 87.8 11.7 0.50 Yes 1.15 85 Alkyl silicate 130 Brush E 797 2.75 12.24 40.86 95.6 4.20.2 0 Yes 1.34 53 Alkyl silicate 29 Brush E 798 2.46 12.48 97.50 97.132.8 0.07 0 Yes 1.25 88 Epoxy resin 30 Brush E 799 2.71 11.86 13.30 86.113.9 0 0 Yes 1.19 85 Acrylic resin 120 Brush E 800 2.36 11.71 43.62 82.614.6 1.6 1.2 No 1.18 52 Urethane resin 187 Brush E 801 2.46 11.35 56.9372.95 26.4 0.65 0 Yes 1.24 83 Polyester resin 28 Spray E 802 1.45 12.0236.59 83.23 16.5 0.27 0 Yes 1.11 88 Epoxy resin 5 Spray E 803 2.42 13.2439.95 79.4 19.5 0.45 0.65 Yes 1.27 49 Acrylic resin 35 Spray E 804 2.119.46 86.50 97.08 1.6 0.33 0.99 Yes 1.31 50 Urethane resin 5 Spray G 8052.97 13.47 32.87 90.5 6 1 2.5 Yes 1.26 51 Polyester resin 200 Brush E806 2.36 9.46 16.23 88.93 8.4 0.87 1.8 Yes 1.14 83 Alkali silicate 25Spray E 807 3.05 13.87 37.40 86.7 13.3 0 0 Yes 1.34 82 Alkali silicate15 Spray E

TABLE 42 Percent of Granularity fine-grain distribution of metal Znmetal grains Zn alloy Coating details grains/Zn alloy among Zn Chemicalcomponent grain Total grains (Ave metal content of Zn metal fracturemetal grain diameter) grains/ grains/Zn alloy surfaces grain Invention(μm) Zn alloy grains or Ave content Coat Corrosion Example Fine Coarsegrains (Mass %) cracks aspect of coat thickness Coating Test No metalmetal (Vol %) Zn Mg Al Si present? ratio (Mass %) Base resin type (μm)method Results 808 2.57 13.25 40.76 81.4 18.6 0 0 Yes 1.16 88 Alkylsilicate 20 Spray E 809 2.65 13.1 87.31 97.34 1.8 0.86 0 No 1.47 85Alkali silicate 18 Spray E 810 2.12 9.08 92.50 95.25 4.1 0.65 0 Yes 1.4887 Alkyl silicate 22 Spray E 811 1.65 9.87 17.93 82.87 16.7 0.43 0 No1.49 86 Alkali silicate 19 Spray E 812 2.35 9.46 44.50 99 0.4 0.6 0 Yes1.34 46 Alkyl silicate 29 Spray E 813 1.63 9.28 96.50 89.35 10.6 0.05 0Yes 1.29 49 Alkali silicate 23 Spray E 814 2.64 9.45 16.94 93.08 6.90.02 0 Yes 1.18 35 Alkyl silicate 21 Spray E 815 2.35 9.25 88.12 99.820.05 0.06 0.07 Yes 1.48 30 Alkali silicate 19 Spray E 816 2.31 9.4660.57 91.56 6.4 1.05 0.99 Yes 1.27 76 Alkyl silicate 15 Spray E 817 2.629.46 39.48 93.36 3.5 2.6 0.54 Yes 1.17 72 Alkali silicate 18 Spray E 8182.52 9.46 15.82 82.13 17.5 0.05 0.32 Yes 1.27 30 Alkyl silicate 22 SprayE 819 2.24 13.32 49.57 91.2 3.6 5.2 0 No 1.27 83 Alkyl silicate 21 SprayE 820 0.05 6.54 86.52 94.1 5.9 0 0.001 Yes 1.48 75 Alkyl silicate 29Spray E 821 2.42 6.35 90.98 83.2 16.2 0 0.6 No 1.49 76 Alkali silicate23 Spray E 822 0.11 7.54 67.32 76.7 22.5 0 0.8 Yes 1.34 72 Alkylsilicate 21 Spray E 823 1.92 8.64 82.33 96.52 3.4 0.04 0.04 Yes 1.23 83Alkali silicate 19 Spray E 824 0.46 6.45 73.76 68.3 26.5 3 2.2 Yes 1.2350 Alkyl silicate 21 Spray E 825 0.77 6.48 88.77 72.84 25.5 0.06 1.6 Yes1.23 72 Alkali silicate 19 Spray E 826 2.35 9.25 45.02 87.2 12.8 0 0 Yes1.05 50 Acrylic resin 654 Spray E 827 2.33 9.46 15.2 91.5 8.5 0 0 Yes1.06 48 Alkali silicate 700 Spray E

TABLE 43 Percent of Zn alloy Mg Diameter fine-grain solid distributionof metal solution Zn metal grains phase grains/Zn alloy among ZnChemical component and Zn—Mg Mg grains (Ave metal content of Zn metalintermetallic content Coat Average grain diameter) grains/ grains/Znalloy compounds of all thickness Time to red Invention grain (μm) Znalloy grains present on MgZn2 or metal (μm) rusting Example diameterFine Coarse grains (Mass %) grain Mg2Zn11 grains Inor- Inor- No (μm)metal metal (Vol %) Zn Mg Al Si surfaces? present? (Mass %) ganicOrganic Organic ganic 335 — 2.35 9.25 78.99 96.0 4.0 0 0 Yes Yes 92 24.6125 E E 336 — 1.99 9.56 42.04 97.5 2.5 0 0 Yes Yes 80 23.8 167 E E 337 —2.35 10 6.55 98.4 1.6 0 0 Yes Yes 67 15.2 88 E E 338 — 2.21 8.54 43.6095.5 7.8 0 0 Yes Yes 77 10.6 56 E E 339 — 2.64 9.85 44.12 96.2 3.8 0 0Yes Yes 53 10.7 256 E E 340 — 2.65 8.56 80.33 98.0 2.0 0 0 Yes No 78 1524 E E 341 — 2.94 8.21 43.38 94.5 5.5 0 0 No No 83 10.5 96 G G 342 —2.58 8.33 13.52 94.0 6.0 0 0 No No 89 14.5 94 G G 343 — 2.37 8.5 34.5597.5 2.5 0 0.07 Yes Yes 90 12.3 93 E E 344 — 2.15 10.11 80.50 93.2 6.8 00.99 Yes Yes 45 8.6 95 E E 345 — 2.96 9.36 79.08 94.5 5.5 0 0 No No 5317.5 92 G G 346 — 2.85 9.45 42.13 93.6 6.4 0 0 No No 48 12.6 95 G G 347— 2.94 9.61 7.56 94.1 5.9 0 0 Yes No 46 10.4 91 E E 348 — 2.11 9.8533.30 93.5 6.5 0 0 Yes No 47 10.9 90 E E 349 — 2.68 9.23 79.25 97.6 2.40 0 No No 49 19 99 G G 350 — 2.49 9.08 7.83 94.5 5.5 0 0.53 Yes Yes 8325.6 115 E E 351 — 2.21 9.87 45.68 92.45 7.5 0 0.05 Yes Yes 35 18 97 E E352 — 2.96 9.46 65.58 90.45 9.5 0.05 0 No No 90 24.7 94 G G 353 — 2.859.28 47.24 91.38 8.6 0.02 0 No No 89 22.9 93 G G 354 — 2.64 9.45 47.7691.1 7.9 1 0 Yes No 88 52.3 83 G G

TABLE 44 Percent of Zn alloy Mg Diameter fine-grain solid distributionof metal solution Zn metal grains phase grains/Zn alloy among ZnChemical component and Zn—Mg Mg Average grains (Ave metal content of Znmetal intermetallic content Coat grain grain diameter) grains/ grains/Znalloy compounds of all thickness Time to red Invention di- (μm) Zn alloygrains present on MgZn2 or metal (μm) rusting Example ameter Fine Coarsegrains (Mass %) grain Mg2Zn11 grains Inor- Inor- No (μm) metal metal(Vol %) Zn Mg Al Si surfaces? present? (Mass %) ganic Organic Organicganic 355 — 2.35 9.25 80.06 81.1 13.7 5.2 0 Yes Yes 47 56.3 88 E G 356 —2.12 9.46 47.02 85.6 9.8 4.6 0 No No 47 33.3 89 G G 357 — 1.76 9.46 7.6689.5 10.5 0 0.001 No No 52 34.5 87 G G 358 — 2.12 9.46 15.20 91.2 8.8 00 Yes Yes 52 23.5 103 E E 359 — 1.65 9.06 86.28 96.1 3.9 0 0 Yes Yes 5226.7 85 E E 360 — 2.12 10.99 49.33 97.5 2.5 0 0 Yes Yes 88 19.5 109 E E361 — 2.21 8.08 5.99 94 6 0 0 Yes Yes 49 15 74 E E 362 — 1.99 8.53 69.5599.4 0.6 0 0 Yes Yes 35 23 105 E E 363 — 1.95 9.32 86.45 91.6 7.9 0 0.5No No 37 31.2 83 G G 364 — 1.76 8.95 75.88 98.5 0.5 0.3 0.7 No No 3637.5 82 G G 365 — 1.48 10.21 48.08 88.43 11.5 0.02 0.05 Yes Yes 80 9.8124 E E 366 — 1.65 8.7 66.85 95.73 3.5 0.12 0.65 Yes Yes 55 15.5 89 E E367 — 2.35 9.86 7.68 92.09 7.8 0.06 0.05 No No 46 14.5 96 G G 368 — 1.628.91 8.64 95.49 3.5 0.02 0.99 Yes Yes 35 16.3 95 E E 369 — 1.88 9.9116.58 93.96 5 0.54 0.5 Yes Yes 67 15.8 99 E E 370 — 2.35 9.25 35.8791.45 8.5 0.05 0 No No 47 19 89 G G 371 — 2.57 9.56 42.04 97.13 2.4 0.020.45 Yes Yes 78 14.6 89 E E 372 — 2.56 9.84 38.41 94.58 5.4 0.02 0.11Yes Yes 34 19.5 98 E E 373 — 2.21 9.75 6.99 95.65 6.8 0.05 0.8 No No 5124.7 96 G G

TABLE 45 Percent of Granularity fine-grain Mg solid distribution metalsolution (peak diameter) grains Zn alloy phase Any of of Zn metal amongZn Chemical component grain and Zn—Mg MgZn2, grains/Zn metal content ofZn metal fracture intermetallic Mg2Zn11, alloy grains grains/ grains/Znalloy surfaces compounds Mg2Zn3, Invention (μm) Zn alloy grains or Avepresent on MgZn, Example Fine Coarse grains (Mass %) cracks aspect grainMg7Zn3 No metal metal (Vol %) Zn Mg Al Si present? ratio surfaces?present? 837 2.35 9.25 35.87 88.8 11.2 0 0 Yes 1.12 Yes Yes 838 2.579.56 42.04 90.6 9.4 0 0 No 1.38 Yes Yes 839 2.56 9.84 6.55 81.45 18.5 00.5 Yes 1.22 Yes Yes 840 2.21 9.75 43.60 99.97 0.03 0 0 Yes 1.14 Yes Yes841 2.64 9.85 44.12 98.4 1.6 0 0 No 1.02 Yes Yes 842 1.99 8.56 37.2193.2 6.8 0 0 Yes 1.05 Yes Yes 843 2.94 8.21 43.38 84.5 13.9 0 1.6 No1.36 No Yes 844 2.58 8.33 13.52 98.1 1.9 0 0 Yes 1.11 No Yes 845 2.37 844.94 94.3 5.7 0 0 No 1.07 Yes Yes 846 2.15 9.22 45.46 90.8 9.2 0 0 No1.42 Yes Yes 847 2.96 9.36 35.96 83.3 15.4 0 1.3 Yes 1.38 No Yes 8482.85 9.45 42.13 79.84 18.6 0 1.56 Yes 1.22 No Yes 849 2.94 9.61 7.5696.4 3.6 0 0 Yes 1.14 Yes Yes 850 2.11 9.85 43.69 94.6 5.4 0 0 Yes 1.13Yes Yes 851 2.68 9.23 44.21 92.4 7.6 0 0 Yes 1.02 No Yes 852 2.99 9.0839.51 75.5 24.5 0 0 Yes 1.06 Yes Yes 853 2.78 9.87 45.68 82.4 17.6 0 0Yes 1.05 Yes Yes 854 2.96 9.46 65.58 98.6 1.4 0 0 Yes 1.24 No Yes 8552.85 9.28 47.24 78.5 21.5 0 0 Yes 1.33 No Yes 856 2.64 9.45 47.76 89.610.4 0 0 Yes 1.27 Yes Yes Coating details Total metal grain Inventioncontent Coat Corrosion Example of coat thickness Coating Test No (Mass%) Base resin type (μm) method Results 837 49 Alkyl silicate 14 Spray E838 89 Urethane resin 55 Spray E 839 90 Alkyl silicate 8 Spray E 840 86Urethane resin 122 Brush E 841 48 Alkyl silicate 555 Spray E 842 47Alkali silicate 19 Spray E 843 47 Alkyl silicate 25 Brush E 844 47 Alkylsilicate 58 Spray E 845 52 Alkyl silicate 685 Spray E 846 52 Alkalisilicate 19 Brush E 847 52 Urethane resin 700 Spray E 848 88 Alkylsilicate 77 Spray E 849 87 Alkyl silicate 54 Spray E 850 89 Alkylsilicate 64 Spray E 851 90 Alkyl silicate 34 Brush E 852 91 Alkalisilicate 28 Spray E 853 46 Urethane resin 109 Brush E 854 47 Alkylsilicate 15 Spray E 855 47 Alkyl silicate 14 Spray E 856 49 Alkylsilicate 18 Spray E

TABLE 46 Percent of Granularity fine-grain Mg solid distribution metalsolution (peak diameter) grains Zn alloy phase and Any of of Zn metalamong Zn Chemical component grain Zn—Mg MgZn2, grains/Zn metal contentof Zn metal fracture intermetallic Mg2Zn11, alloy grains grains/grains/Zn alloy surfaces compounds Mg2Zn3, Invention (μm) Zn alloygrains or Ave present on MgZn, Example Fine Coarse grains (Mass %)cracks aspect grain Mg7Zn3 No metal metal (Vol %) Zn Mg Al Si present?ratio surfaces? present? 857 2.35 9.25 45.02 87.2 12.8 0 0 Yes 1.05 YesYes 858 2.12 9.46 47.02 92.2 7.8 0 0 Yes 1.22 No Yes 859 2.34 9.46 7.6670.5 29.5 0 0 Yes 1.13 No Yes 860 2.33 9.46 15.20 91.5 8.5 0 0 Yes 1.06Yes Yes 861 2.23 9.06 43.16 74.5 25.5 0 0 Yes 1.05 Yes Yes 862 2.12 9.349.33 99.93 0.07 0 0 Yes 1.24 Yes Yes 863 2.21 8.68 19.47 89.2 10.8 0 0No 1.05 Yes Yes 864 1.38 8.53 69.55 86 11.2 1.6 1.2 No 1.12 Yes Yes 8651.95 9.32 51.41 75.23 24.5 0.27 0 Yes 1.38 No Yes 866 2.26 8.95 75.8882.6 17.4 0 0 Yes 1.13 No Yes 867 2.05 12.54 48.08 98.7 1.3 0 0 Yes 1.33Yes Yes 868 1.65 8.7 66.85 80.5 19.5 0 0 Yes 1.27 Yes Yes 869 2.35 8.557.68 88.85 10.8 0.05 0.3 No 1.23 No Yes 870 1.62 8.91 8.64 87.7 11.9 0.40 Yes 1.11 Yes Yes 871 1.88 9.91 16.58 90.5 9.5 0 0 Yes 1.42 Yes Yes 8722.35 9.25 35.87 89.5 10.5 0 0 Yes 1.06 No Yes 873 2.57 9.56 42.04 84.915.1 0 0 Yes 1.05 Yes Yes 874 2.56 9.84 38.41 83.2 16.8 0 0 Yes 1.07 YesYes 875 2.21 9.75 6.99 89.4 10.6 0 0 Yes 1.42 No Yes 876 2.64 9.85 44.1284.3 13.3 2.4 0 Yes 1.38 Yes Yes Coating details Total metal grainInvention content Coat Corrosion Example of coat thickness Coating TestNo (Mass %) Base resin type (μm) method Results 857 50 Alkali silicate 2Spray G 858 87 Alkyl silicate 37 Spray E 859 83 Alkali silicate 12 SprayE 860 48 Alkyl silicate 160 Brush E 861 51 Alkali silicate 5 Brush G 86251 Alkyl silicate 56 Brush E 863 87 Alkali silicate 2 Spray G 864 85Alkyl silicate 18 Spray E 865 86 Alkyl silicate 23 Spray E 866 50 Epoxyresin 30 Brush E 867 51 Acrylic resin 77 Brush E 868 51 Urethane resin655 Brush E 869 80 Polyester resin 47 Spray E 870 46 Epoxy resin 43Spray E 871 51 Acrylic resin 52 Brush E 872 86 Urethane resin 20 Brush E873 85 Polyester resin 200 Brush E 874 82 Alkali silicate 22 Spray E 87581 Alkyl silicate 25 Spray E 876 46 Alkali silicate 14 Spray E

TABLE 47 Percent of Granularity fine-grain Mg solid distribution metalsolution (peak diameter) grains Zn alloy phase and Any of of Zn metalamong Zn Chemical component grain Zn—Mg MgZn2, grains/Zn metal contentof Zn metal fracture intermetallic Mg2Zn11, alloy grains grains/grains/Zn alloy surfaces compounds Mg2Zn3, Invention (μm) Zn alloygrains or Ave present on MgZn, Example Fine Coarse grains (Mass %)cracks aspect grain Mg7Zn3 No metal metal (Vol %) Zn Mg Al Si present?ratio surfaces? present? 877 2.65 8.56 66.99 98.6 1.4 0 0 No 1.22 YesYes 878 2.94 8.21 43.38 76.45 23.5 0 0.05 Yes 1.14 Yes Yes 879 2.58 8.3339.75 91.1 8.9 0 0 Yes 1.13 Yes Yes 880 2.37 8 65.38 85.1 14.9 0 0 Yes1.02 Yes Yes 881 2.15 9.22 45.46 77.48 18.4 2.55 1.57 Yes 1.06 Yes Yes882 2.96 9.36 22.55 97.9 2.1 0 0 Yes 1.05 Yes Yes 883 2.85 9.45 42.1394.8 5.2 0 0 Yes 1.24 Yes Yes 884 2.94 9.61 38.50 84.6 15.4 0 0 Yes 1.33Yes Yes 885 2.11 9.85 64.13 89.3 10.7 0 0 Yes 1.27 Yes Yes 886 2.68 9.2344.21 83.3 16.7 0 0 Yes 1.05 Yes Yes 887 2.99 9.08 39.51 80.05 19.6 0.350 No 1.12 Yes Yes 888 1.82 9.87 78.64 85.5 14.5 0 0 No 1.23 Yes Yes 8891.42 9.46 42.05 85 14.2 0 0.8 No 1.36 Yes Yes 890 2.12 9.28 64.58 87.312.7 0 0 No 1.11 Yes Yes 891 1.92 9.45 47.76 89.5 10.5 0 0 Yes 1.07 YesYes 892 2.11 9.63 24.10 87.3 11.8 0 0.9 Yes 1.42 Yes Yes 893 2.97 9.1639.11 86.4 12.8 0.5 0.3 Yes 1.38 Yes Yes 894 2.36 10.39 19.65 93.8 6.2 00 Yes 1.22 Yes Yes 895 3.05 10.56 65.39 83.8 16.2 0 0 Yes 1.14 Yes Yes896 2.15 10.74 48.57 80.4 19.6 0 0 Yes 1.13 Yes Yes Coating detailsTotal metal grain Invention content Coat Corrosion Example of coatthickness Coating Test No (Mass %) Base resin type (μm) method Results877 47 Urethane resin 112 Spray E 878 48 Alkali silicate 24 Spray E 87951 Urethane resin 150 Spray E 880 53 Alkali silicate 18 Spray E 881 88Alkyl silicate 19 Brush E 882 85 Alkyl silicate 24 Spray E 883 83Urethane resin 99 Spray E 884 82 Alkyl silicate 7 Spray E 885 83 Epoxyresin 100 Spray E 886 47 Alkyl silicate 27 Brush E 887 51 Alkalisilicate 15 Spray E 888 52 Alkyl silicate 14 Spray E 889 51 Urethaneresin 55 Spray E 890 52 Alkyl silicate 8 Spray E 891 89 Urethane resin122 Brush E 892 85 Alkyl silicate 54 Spray E 893 82 Alkali silicate 19Spray E 894 87 Alkyl silicate 25 Brush E 895 88 Alkyl silicate 58 SprayE 896 49 Alkyl silicate 21 Spray E

TABLE 48 Percent of Granularity fine-grain Mg solid distribution metalsolution (peak diameter) grains Zn alloy phase and Any of of Zn metalamong Zn Chemical component grain Zn—Mg MgZn2, grains/Zn metal contentof Zn metal fracture intermetallic Mg2Zn11, alloy grains grains/grains/Zn alloy surfaces compounds Mg2Zn3, Invention (μm) Zn alloygrains or Ave present on MgZn, Example Fine Coarse grains (Mass %)cracks aspect grain Mg7Zn3 No metal metal (Vol %) Zn Mg Al Si present?ratio surfaces? present? 897 2.19 10.27 24.91 87.6 12.4 0 0 Yes 1.02 YesYes 898 2.48 11.5 39.92 89.3 10.7 0 0 Yes 1.06 Yes Yes 899 2.85 11.6722.65 91.5 8.5 0 0 Yes 1.05 Yes Yes 900 2.75 11.85 66.20 94.9 5.1 0 0Yes 1.24 Yes Yes 901 2.46 11.38 49.38 75.5 24.5 0 0 Yes 1.33 Yes Yes 9022.71 12.61 30.58 86.5 13.5 0 0 Yes 1.27 Yes Yes 903 2.36 12.78 45.59 8020 0 0 Yes 1.05 Yes Yes 904 2.16 9.57 28.32 84.5 15.5 0 0 Yes 1.12 YesYes 905 2.46 9.81 71.87 88 10.5 1.5 0 Yes 1.23 Yes Yes 906 2.49 8.4353.05 92.1 7.9 0 0 Yes 1.36 Yes Yes 907 2.95 8.55 27.74 95.2 4.8 0 0 Yes1.11 Yes Yes 908 2.36 8.22 42.75 81.6 18.4 0 0 Yes 1.07 Yes Yes 909 2.219.44 23.29 86.8 12.7 0 0.5 Yes 1.42 Yes Yes 910 2.25 9.58 61.12 89.710.3 0 0 No 1.38 Yes Yes 911 2.44 9.67 44.30 71.2 20.8 8 0 Yes 1.22 YesYes 912 2.78 9.83 23.96 97.5 2.5 0 0 No 1.14 Yes Yes 913 2.15 10.0744.09 84.8 15.2 0 0 Yes 1.13 Yes Yes 914 2.19 9.45 24.63 80.8 19.2 0 0No 1.02 Yes Yes 915 2.48 9.3 62.46 78.7 13.5 7.8 0 Yes 1.06 Yes Yes 9162.59 9.99 45.64 88.1 11.9 0 0 No 1.05 Yes Yes Coating details Totalmetal grain Invention content Coat Corrosion Example of coat thicknessCoating Test No (Mass %) Base resin type (μm) method Results 897 50Alkali silicate 19 Brush E 898 51 Urethane resin 56 Spray E 899 52 Alkylsilicate 77 Spray E 900 53 Alkyl silicate 12 Spray E 901 88 Alkylsilicate 64 Spray E 902 85 Alkyl silicate 34 Brush E 903 83 Alkalisilicate 28 Spray E 904 81 Urethane resin 109 Brush E 905 80 Alkylsilicate 15 Spray E 906 47 Alkyl silicate 14 Spray E 907 49 Alkylsilicate 18 Spray E 908 50 Urethane resin 122 Brush E 909 51 Alkylsilicate 54 Spray E 910 52 Alkali silicate 19 Spray E 911 83 Alkylsilicate 25 Brush E 912 88 Alkyl silicate 58 Spray E 913 85 Alkylsilicate 21 Spray E 914 83 Alkali silicate 19 Brush E 915 82 Urethaneresin 56 Spray E 916 47 Alkyl silicate 77 Spray E

TABLE 49 Percent of Granularity fine-grain Mg solid distribution metalsolution (peak diameter) grains Zn alloy phase and Any of of Zn metalamong Zn Chemical component grain Zn—Mg MgZn2, grains/Zn metal contentof Zn metal fracture intermetallic Mg2Zn11, alloy grains grains/grains/Zn alloy surfaces compounds Mg2Zn3, Invention (μm) Zn alloygrains or Ave present on MgZn, Example Fine Coarse grains (Mass %)cracks aspect grain Mg7Zn3 No metal metal (Vol %) Zn Mg Al Si present?ratio surfaces? present? 917 2.47 9.58 25.30 88.5 10.6 0 0.9 Yes 1.24Yes Yes 918 2.69 9.4 42.84 84.6 15.4 0 0 Yes 1.33 Yes Yes 919 2.57 9.5725.44 97.4 2.6 0 0 Yes 1.27 Yes Yes 920 2.49 9.54 63.27 83.3 16.7 0 0Yes 1.37 Yes Yes 921 2.68 9.58 46.45 91.9 8.1 0 0 Yes 1.10 Yes Yes 9222.35 9.25 46.45 86.3 13.7 0 0 Yes 1.04 Yes Yes 923 2.48 10.04 50.91 81.518.5 0 0 Yes 1.02 Yes Yes 924 2.13 11.27 27.25 97.6 2.4 0 0 Yes 1.01 YesYes 925 1.93 11.44 42.26 89.1 10.9 0 0 Yes 1.08 Yes Yes 926 2.05 8.933.69 92.8 7.2 0 0 Yes 1.14 Yes Yes 927 1.42 8.75 48.70 81.96 17.5 0.50.04 No 1.23 Yes Yes 928 1.46 9.44 29.24 85.4 14.6 0 0 No 1.33 Yes Yes929 1.75 9.03 67.07 90.6 9.4 0 0 Yes 1.37 Yes Yes 930 1.86 8.85 50.2592.9 7.1 0 0 Yes 1.44 Yes Yes 931 1.74 8.95 29.91 77.5 22.5 0 0 Yes 1.21Yes Yes 932 1.96 12.54 87.50 84.8 13.7 1.5 0 No 1.22 Yes Yes 933 1.658.7 30.58 87.1 12.9 0 0 No 1.23 Yes Yes 934 2.35 8.55 68.41 95.7 4.3 0 0Yes 1.47 Yes Yes 935 1.62 10.72 54.59 80.2 17.6 1 1.2 No 1.01 Yes Yes936 2.25 9.9 34.25 98.8 0.6 0.6 0 Yes 1.04 Yes Yes Coating details Totalmetal grain Invention content Coat Corrosion Example of coat thicknessCoating Test No (Mass %) Base resin type (μm) method Results 917 46Alkyl silicate 54 Spray E 918 49 Alkali silicate 2 Spray G 919 50 Alkalisilicate 20 Spray E 920 51 Alkali silicate 5 Spray G 921 83 Alkylsilicate 20 Spray E 922 82 Alkali silicate 15 Brush E 923 88 Alkylsilicate 57 Brush E 924 85 Alkali silicate 13 Brush E 925 86 Alkylsilicate 22 Brush E 926 47 Alkali silicate 20 Spray E 927 48 Alkylsilicate 27 Spray E 928 50 Alkali silicate 15 Spray E 929 51 Alkylsilicate 35 Spray E 930 52 Alkali silicate 34 Brush E 931 88 Alkylsilicate 45 Brush E 932 89 Alkali silicate 52 Brush E 933 86 Alkylsilicate 23 Brush E 934 87 Alkali silicate 5 Spray E 935 86 Alkylsilicate 52 Brush E 936 46 Alkali silicate 150 Brush E

TABLE 50 Percent of Granularity fine-grain Mg solid distribution metalsolution (peak diameter) grains Zn alloy phase and Any of of Zn metalamong Zn Chemical component grain Zn—Mg MgZn2, grains/Zn metal contentof Zn metal fracture intermetallic Mg2Zn11, alloy grains grains/grains/Zn alloy surfaces compounds Mg2Zn3, Invention (μm) Zn alloygrains or Ave present on MgZn, Example Fine Coarse grains (Mass %)cracks aspect grain Mg7Zn3 No metal metal (Vol %) Zn Mg Al Si present?ratio surfaces? present? 937 2.36 9.57 37.61 86.9 10.3 1.6 1.2 Yes 1.05Yes Yes 938 2.24 10.79 45.60 92.98 7 0.02 0 Yes 1.12 Yes Yes 939 2.4610.93 46.70 75.5 23.5 1 0 Yes 1.11 Yes Yes 940 1.56 11.02 41.22 82.517.5 0 0 No 1.08 Yes Yes 941 1.24 11.18 45.68 80.1 12.4 7.5 0 Yes 1.47Yes Yes 942 1.68 11.42 22.02 85.09 14.9 0 0.01 Yes 1.50 Yes Yes 943 2.6510.8 37.03 78.7 20.7 0 0.6 No 1.13 Yes Yes 944 2.22 10.65 28.46 91.298.6 0 0.11 Yes 1.26 Yes Yes 945 2.45 11.34 43.47 85.8 14.2 0 0 Yes 1.14Yes Yes 946 2.23 11.62 35.19 98.12 0.08 0 1.8 Yes 1.49 Yes Yes 947 2.2611.15 73.02 83.46 15.2 0 1.34 No 1.34 Yes Yes 948 2.72 12.38 56.20 73.1717.4 9 0.43 Yes 1.18 Yes Yes 949 2.13 12.55 35.86 98.6 0.8 0.6 0 Yes1.17 Yes Yes 950 1.98 9.34 93.45 93.55 6.4 0.05 0 Yes 1.48 Yes Yes 9512.02 9.58 30.66 96.78 3.2 0.02 0 No 1.49 Yes Yes 952 2.21 9.88 74.21 839.2 7.8 0 Yes 1.27 Yes Yes 953 2.55 10 55.39 70.92 19.2 9.88 0 Yes 1.17Yes Yes 954 1.92 10.67 30.08 80.25 15.1 4.65 0 Yes 1.16 Yes Yes 955 1.9611.89 45.09 81.85 14.5 3.65 0 Yes 1.27 Yes Yes 956 2.11 12.03 41.4189.45 10.5 0.05 0 Yes 1.27 Yes Yes 957 2.97 12.12 17.75 87.3 7.5 5.2 0Yes 1.49 Yes Yes Coating details Total metal grain Invention contentCoat Corrosion Example of coat thickness Coating Test No (Mass %) Baseresin type (μm) method Results 937 49 Alkyl silicate 60 Brush E 938 35Alkali silicate 15 Spray E 939 37 Alkyl silicate 24 Spray E 940 36Alkali silicate 34 Spray E 941 38 Alkyl silicate 20 Brush E 942 48Alkali silicate 200 Brush E 943 46 Alkyl silicate 56 Brush E 944 51Alkali silicate 34 Spray E 945 46 Alkyl silicate 2 Spray G 946 38 Alkalisilicate 15 Spray E 947 48 Alkali silicate 10 Spray E 948 52 Alkylsilicate 125 Brush E 949 30 Alkali silicate 24 Brush E 950 76 Alkylsilicate 110 Brush E 951 72 Alkali silicate 24 Brush E 952 81 Alkylsilicate 2 Spray G 953 64 Alkali silicate 37 Spray E 954 69 Alkylsilicate 113 Brush E 955 83 Alkali silicate 2 Spray G 956 30 Alkylsilicate 75 Brush E 957 83 Alkali silicate 30 Brush E

TABLE 51 Percent of Granularity fine-grain Mg solid distribution metalsolution (peak diameter) grains Zn alloy phase and Any of of Zn metalamong Zn Chemical component grain Zn—Mg MgZn2, grains/Zn metal contentof Zn metal fracture intermetallic Mg2Zn11, alloy grains grains/grains/Zn alloy surfaces compounds Mg2Zn3, Invention (μm) Zn alloygrains or Ave present on MgZn, Example Fine Coarse grains (Mass %)cracks aspect grain Mg7Zn3 No metal metal (Vol %) Zn Mg Al Si present?ratio surfaces? present? 958 2.36 12.28 32.76 93.9 6.1 0 0.001 Yes 1.29Yes Yes 959 3.05 12.52 30.89 82.55 16.8 0.05 0.6 Yes 1.23 Yes Yes 9602.57 11.9 45.90 70.7 27.5 1 0.8 Yes 1.23 Yes Yes 961 2.65 11.75 42.2294.6 2.9 0 2.5 Yes 1.23 Yes Yes 962 2.54 12.44 18.56 94 4.5 0 1.5 No1.23 Yes Yes 963 2.85 12.03 33.57 99.43 0.07 0 0.5 Yes 1.27 Yes Yes 9642.75 10.61 31.70 96.82 3.1 0.04 0.04 Yes 1.23 Yes Yes 965 2.46 11.346.71 76.3 20.5 1 2.2 Yes 1.36 Yes Yes 966 2.71 11.58 47.89 68.84 29.50.06 1.6 Yes 1.11 Yes Yes 967 2.36 11.11 24.23 92.33 7.6 0.07 0 Yes 1.02Yes Yes 968 2.16 12.34 39.24 95.2 0.7 1.2 2.9 Yes 1.05 Yes Yes 969 2.4612.51 37.37 91.8 4.6 1.8 1.8 Yes 1.24 Yes Yes 970 2.49 11.64 50.38 828.3 9.2 0.5 Yes 1.33 Yes Yes 971 1.63 9.16 37.14 88.2 11.8 0 0 Yes 1.27Yes Yes 972 1.51 9.46 13.48 86.06 12.9 0 1.04 Yes 1.50 Yes Yes 973 3.059.54 40.05 99.34 0.6 0 0.06 Yes 1.13 Yes Yes 974 2.57 9.56 38.18 89.519.5 0 0.99 No 1.04 Yes Yes 975 2.65 9.46 7.63 88.3 11.7 0 0 Yes 1.02 YesYes 976 2.54 11.99 37.95 89.9 9.4 0.7 0 Yes 1.08 Yes Yes 977 2.85 12.0814.29 87.8 11.7 0.5 0 Yes 1.15 Yes Yes Coating details Total metal grainInvention content Coat Corrosion Example of coat thickness Coating TestNo (Mass %) Base resin type (μm) method Results 958 75 Alkyl silicate 34Brush E 959 76 Epoxy resin 124 Brush E 960 72 Acrylic resin 15 Spray E961 71 Urethane resin 23 Spray E 962 82 Polyester resin 157 Brush E 96381 Epoxy resin 26 Spray E 964 83 Acrylic resin 38 Spray E 965 50Urethane resin 160 Brush E 966 72 Polyester resin 27 Brush E 967 47Epoxy resin 180 Brush E 968 47 Acrylic resin 26 Spray E 969 52 Urethaneresin 180 Brush E 970 52 Polyester resin 15 Spray E 971 50 Epoxy resin 2Spray G 972 46 Acrylic resin 28 Spray E 973 47 Urethane resin 30 Spray E974 83 Polyester resin 2 Spray G 975 52 Epoxy resin 157 Brush E 976 89Acrylic resin 28 Brush E 977 85 Alkyl silicate 130 Brush E

TABLE 52 Percent of Granularity fine-grain Mg solid distribution metalsolution (peak diameter) grains Zn alloy phase and Any of of Zn metalamong Zn Chemical component grain Zn—Mg MgZn2, grains/Zn metal contentof Zn metal fracture intermetallic Mg2Zn11, alloy grains grains/grains/Zn alloy surfaces compounds Mg2Zn3, Invention (μm) Zn alloygrains or Ave present on MgZn, Example Fine Coarse grains (Mass %)cracks aspect grain Mg7Zn3 No metal metal (Vol %) Zn Mg Al Si present?ratio surfaces? present? 978 2.75 12.24 40.86 95.6 4.2 0.2 0 Yes 1.34Yes Yes 979 2.46 12.48 97.50 97.13 2.8 0.07 0 Yes 1.25 Yes Yes 980 2.7111.86 13.30 86.1 13.9 0 0 Yes 1.19 Yes Yes 981 2.36 11.71 43.62 82.614.6 1.6 1.2 No 1.18 Yes Yes 982 2.46 11.35 56.93 72.95 26.4 0.65 0 Yes1.24 Yes Yes 983 1.45 12.02 36.59 83.23 16.5 0.27 0 Yes 1.11 Yes Yes 9842.42 13.24 39.95 79.4 19.5 0.45 0.65 Yes 1.27 Yes Yes 985 2.11 9.4686.50 97.08 1.6 0.33 0.99 Yes 1.31 Yes Yes 986 2.97 13.47 32.87 90.5 6 12.5 Yes 1.26 Yes Yes 987 2.36 9.46 16.23 88.93 8.4 0.87 1.8 Yes 1.14 YesYes 988 3.05 13.87 37.40 86.7 13.3 0 0 Yes 1.34 Yes Yes 989 2.57 13.2540.76 81.4 18.6 0. 0 Yes 1.16 Yes Yes 990 2.65 13.1 87.31 97.34 1.8 0.860 No 1.47 Yes Yes 991 2.12 9.08 92.50 95.25 4.1 0.65 0 Yes 1.48 Yes Yes992 1.65 9.87 17.93 82.87 16.7 0.43 0 No 1.49 Yes Yes 993 2.35 9.4644.50 99 0.4 0.6 0 Yes 1.34 Yes Yes 994 1.63 9.28 96.50 89.35 10.6 0.050 Yes 1.29 Yes Yes 995 2.64 9.45 16.94 93.08 6.9 0.02 0 Yes 1.18 Yes Yes996 2.35 9.25 88.12 99.82 0.05 0.06 0.07 Yes 1.48 Yes Yes 997 2.31 9.4660.57 91.56 6.4 1.05 0.99 Yes 1.27 Yes Yes Coating details Total metalgrain Invention content Coat Corrosion Example of coat thickness CoatingTest No (Mass %) Base resin type (μm) method Results 978 53 Alkylsilicate 29 Brush E 979 88 Epoxy resin 30 Brush E 980 85 Acrylic resin120 Brush E 981 52 Urethane resin 187 Brush E 982 83 Polyester resin 28Spray E 983 88 Epoxy resin 5 Spray E 984 49 Acrylic resin 35 Spray E 98550 Urethane resin 5 Spray G 986 51 Polyester resin 200 Brush E 987 83Alkali silicate 25 Spray E 988 82 Alkali silicate 15 Spray E 989 88Alkyl silicate 20 Spray E 990 85 Alkali silicate 18 Spray E 991 87 Alkylsilicate 22 Spray E 992 86 Alkali silicate 19 Spray E 993 46 Alkylsilicate 29 Spray E 994 49 Alkali silicate 23 Spray E 995 35 Alkylsilicate 21 Spray E 996 30 Alkali silicate 19 Spray E 997 76 Alkylsilicate 15 Spray E

TABLE 53 Percent of Granularity fine-grain distribution metal Mg solid(peak diameter) grains Zn alloy solution of Zn metal among Zn Chemicalcomponent grain phase and Zn—Mg grains/Zn metal content of Zn metalfracture intermetallic alloy grains grains/ grains/Zn alloy surfacescompounds Invention (μm) Zn alloy grains or Ave present on Example FineCoarse grains (Mass %) cracks aspect grain No metal metal (Vol %) Zn MgAl Si present? ratio surfaces?  998 2.62 9.46 39.48 93.36 3.5 2.6 0.54Yes 1.17 Yes  999 2.52 9.46 15.82 82.13 17.5 0.05 0.32 Yes 1.27 Yes 10002.24 13.32 49.57 91.2 3.6 5.2 0 No 1.27 Yes 1001 0.05 6.54 86.52 94.15.9 0 0.001 Yes 1.48 Yes 1002 2.42 6.35 90.98 83.2 16.2 0 0.6 No 1.49Yes 1003 0.11 7.54 67.32 76.7 22.5 0 0.8 Yes 1.34 Yes 1004 1.92 8.6482.33 96.52 3.4 0.04 0.04 Yes 1.23 Yes 1005 0.46 6.45 73.76 68.3 26.5 32.2 Yes 1.23 Yes 1006 0.77 6.48 88.77 72.84 25.5 0.06 1.6 Yes 1.23 Yes1007 2.35 9.25 45.02 87.2 12.8 0 0 Yes 1.05 Yes 1008 2.33 9.46 15.2 91.58.5 0 0 Yes 1.06 Yes 1009 1.95 9.32 51.41 75.23 24.5 0.27 0 Yes 1.38 Yes1010 2.15 9.22 45.46 77.48 18.4 2.55 1.57 Yes 1.06 Yes 1011 2.23 11.6235.19 72.62 0.08 25.5 1.8 Yes 1.49 Yes 1012 2.26 11.15 73.02 64.06 15.219.4 1.34 No 1.34 Yes 1013 1.98 9.34 93.45 83 6.4 10.6 0 Yes 1.48 Yes1014 2.02 9.58 30.66 86.4 3.2 10.4 0 No 1.49 Yes 1015 2.36 12.28 32.7680.4 6.1 13.5 0.001 Yes 1.29 Yes 1016 3.05 12.52 30.89 70.1 16.8 12.50.6 Yes 1.23 Yes 1017 2.57 11.9 45.90 60.9 27.5 10.8 0.8 Yes 1.23 YesAny of Coating details MgZn2, Total Mg2Zn11, metal Mg2Zn3, grainInvention MgZn, content Coat Example Mg7Zn3 of coat thickness Coating Nopresent? (Mass %) Base resin type (μm) method Corrosion Test Results 998 Yes 72 Alkali silicate 18 Spray E  999 Yes 30 Alkyl silicate 22Spray E 1000 Yes 83 Alkyl silicate 21 Spray E 1001 Yes 75 Alkyl silicate29 Spray E 1002 Yes 76 Alkali silicate 23 Spray E 1003 Yes 72 Alkylsilicate 21 Spray E 1004 Yes 83 Alkali silicate 19 Spray E 1005 Yes 50Alkyl silicate 21 Spray E 1006 Yes 72 Alkali silicate 19 Spray E 1007Yes 50 Acrylic resin 654 Spray E 1008 Yes 48 Alkali silicate 700 Spray E1009 Yes 75 Alkyl silicate 555 Spray E 1010 Yes 55 Alkyl silicate 321Spray E 1011 Yes 38 Alkyl silicate 152 Brush E 1012 Yes 48 Urethaneresin 674 Spray E 1013 Yes 76 Polyester resin 325 Spray E 1014 Yes 72Alkyl silicate 665 Spray E 1015 Yes 75 Alkyl silicate 354 Brush E 1016Yes 76 Alkyl silicate 165 Spray E 1017 Yes 72 Urethane resin 354 Spray E

TABLE 54 Percent of Granularity fine-grain distribution metal Mg solid(Ave diameter) grains Zn alloy solution of Zn metal among Zn Chemicalcomponent grain phase and Zn—Mg grains/Zn metal content of Zn metalfracture intermetallic alloy grains grains/ grains/Zn alloy surfacescompounds Invention (μm) Zn alloy grains or Ave present on Example FineCoarse grains (Mass %) cracks aspect grain No metal metal (Vol %) Zn MgAl Si present? ratio surfaces? 1018 2.35 9.25 35.87 88.8 11.2 0 0 Yes1.12 Yes 1019 2.57 9.56 42.04 90.6 9.4 0 0 No 1.38 Yes 1020 2.56 9.846.55 81.45 18.5 0 0.05 Yes 1.22 Yes 1021 2.21 9.75 43.60 99.97 0.03 0 0Yes 1.14 Yes 1022 2.64 9.85 44.12 98.4 1.6 0 0 No 1.02 Yes 1023 1.998.56 37.21 93.2 6.8 0 0 Yes 1.05 Yes 1024 2.94 8.21 43.38 84.5 13.9 01.6 No 1.36 No 1025 2.58 8.33 13.52 98.1 1.9 0 0 Yes 1.11 No 1026 2.37 844.94 94.3 5.7 0 0 No 1.07 Yes 1027 2.15 9.22 45.46 90.8 9.2 0 0 No 1.42Yes 1028 2.96 9.36 35.96 83.3 15.4 0 1.3 Yes 1.38 No 1029 2.85 9.4542.13 79.84 18.6 0 1.56 Yes 1.22 No 1030 2.94 9.61 7.56 96.4 3.6 0 0 Yes1.14 Yes 1031 2.11 9.85 43.69 94.6 5.4 0 0 Yes 1.13 Yes 1032 2.68 9.2344.21 92.4 7.6 0 0 Yes 1.02 No 1033 2.99 9.08 39.51 75.5 24.5 0 0 Yes1.06 Yes 1034 2.78 9.87 45.68 82.4 17.6 0 0 Yes 1.05 Yes 1035 2.96 9.4665.58 98.6 1.4 0 0 Yes 1.24 No 1036 2.85 9.28 47.24 78.5 21.5 0 0 Yes1.33 No 1037 2.64 9.45 47.76 89.6 10.4 0 0 Yes 1.27 Yes Any of Coatingdetails MgZn2, Total Mg2Zn11, metal Mg2Zn3, grain Invention MgZn,content Coat Example Mg7Zn3 of coat thickness Coating No present? (Mass%) Base resin type (μm) method Corrosion Test Results 1018 Yes 49 Alkylsilicate 14 Spray E 1019 Yes 89 Urethane resin 55 Spray E 1020 Yes 90Alkyl silicate 8 Spray E 1021 Yes 86 Urethane resin 122 Brush E 1022 Yes48 Alkyl silicate 555 Spray E 1023 Yes 47 Alkali silicate 19 Spray E1024 Yes 47 Alkyl silicate 25 Brush E 1025 Yes 47 Alkyl silicate 58Spray E 1026 Yes 52 Alkyl silicate 685 Spray E 1027 Yes 52 Alkalisilicate 19 Brush E 1028 Yes 52 Urethane resin 700 Spray E 1029 Yes 88Alkyl silicate 77 Spray E 1030 Yes 87 Alkyl silicate 54 Spray E 1031 Yes89 Alkyl silicate 64 Spray E 1032 Yes 90 Alkyl silicate 34 Brush E 1033Yes 91 Alkali silicate 28 Spray E 1034 Yes 46 Urethane resin 109 Brush E1035 Yes 47 Alkyl silicate 15 Spray E 1036 Yes 47 Alkyl silicate 14Spray E 1037 Yes 49 Alkyl silicate 18 Spray E

TABLE 55 Percent of Granularity fine-grain distribution metal Mg solid(Ave diameter) grains Zn alloy solution of Zn metal among Zn Chemicalcomponent grain phase and Zn—Mg grains/Zn metal content of Zn metalfracture intermetallic alloy grains grains/ grains/Zn alloy surfacescompounds Invention (μm) Zn alloy grains or Ave present on Example FineCoarse grains (Mass %) cracks aspect grain No metal metal (Vol %) Zn MgAl Si present? ratio surfaces? 1038 2.35 9.25 45.02 87.2 12.8 0 0 Yes1.05 Yes 1039 2.12 9.46 47.02 92.2 7.8 0 0 Yes 1.22 No 1040 2.34 9.467.66 70.5 29.5 0 0 Yes 1.13 No 1041 2.33 9.46 15.20 91.5 8.5 0 0 Yes1.06 Yes 1042 2.23 9.06 43.16 74.5 25.5 0 0 Yes 1.05 Yes 1043 2.12 9.349.33 99.93 0.07 0 0 Yes 1.24 Yes 1044 2.21 8.68 19.47 89.2 10.8 0 0 No1.05 Yes 1045 1.38 8.53 69.55 86 11.2 1.6 1.2 No 1.12 Yes 1046 1.95 9.3251.41 75.23 24.5 0.27 0 Yes 1.38 No 1047 2.26 8.95 75.88 82.6 17.4 0 0Yes 1.13 No 1048 2.05 12.54 48.08 98.7 1.3 0 0 Yes 1.33 Yes 1049 1.658.7 66.85 80.5 19.5 0 0 Yes 1.27 Yes 1050 2.35 8.55 7.68 88.85 10.8 0.050.3 No 1.23 No 1051 1.62 8.91 8.64 87.7 11.9 0.4 0 Yes 1.11 Yes 10521.88 9.91 16.58 90.5 9.5 0 0 Yes 1.42 Yes 1053 2.35 9.25 35.87 89.5 10.50 0 Yes 1.06 No 1054 2.57 9.56 42.04 84.9 15.1 0 0 Yes 1.05 Yes 10552.56 9.84 38.41 83.2 16.8 0 0 Yes 1.07 Yes 1056 2.21 9.75 6.99 89.4 10.60 0 Yes 1.42 No 1057 2.64 9.85 44.12 84.3 13.3 2.4 0 Yes 1.38 Yes Any ofCoating details MgZn2, Total Mg2Zn11, metal Mg2Zn3, grain InventionMgZn, content Coat Example Mg7Zn3 of coat thickness Coating No present?(Mass %) Base resin type (μm) method Corrosion Test Results 1038 Yes 50Alkali silicate 2 Spray G 1039 Yes 87 Alkyl silicate 37 Spray E 1040 Yes83 Alkali silicate 12 Spray E 1041 Yes 48 Alkyl silicate 160 Brush E1042 Yes 51 Alkali silicate 5 Brush G 1043 Yes 51 Alkyl silicate 56Brush E 1044 Yes 87 Alkali silicate 2 Spray G 1045 Yes 85 Alkyl silicate18 Spray E 1046 Yes 86 Alkyl silicate 23 Spray E 1047 Yes 50 Epoxy resin30 Brush E 1048 Yes 51 Acrylic resin 77 Brush E 1049 Yes 51 Urethaneresin 655 Brush E 1050 Yes 80 Polyester resin 47 Spray E 1051 Yes 46Epoxy resin 43 Spray E 1052 Yes 51 Acrylic resin 52 Brush E 1053 Yes 86Urethane resin 20 Brush E 1054 Yes 85 Polyester resin 200 Brush E 1055Yes 82 Alkali silicate 22 Spray E 1056 Yes 81 Alkyl silicate 25 Spray E1057 Yes 46 Alkali silicate 14 Spray E

TABLE 56 Percent of Granularity fine-grain distribution metal Mg solid(Ave diameter) grains Zn alloy solution of Zn metal among Zn Chemicalcomponent grain phase and Zn—Mg grains/Zn metal content of Zn metalfracture intermetallic alloy grains grains/ grains/Zn alloy surfacescompounds Invention (μm) Zn alloy grains or Ave present on Example FineCoarse grains (Mass %) cracks aspect grain No metal metal (Vol %) Zn MgAl Si present? ratio surfaces? 1058 2.65 8.56 66.99 98.6 1.4 0 0 No 1.22Yes 1059 2.94 8.21 43.38 76.45 23.5 0 0.05 Yes 1.14 Yes 1060 2.58 8.3339.75 91.1 8.9 0 0 Yes 1.13 Yes 1061 2.37 8 65.38 85.1 14.9 0 0 Yes 1.02Yes 1062 2.15 9.22 45.46 77.48 18.4 2.55 1.57 Yes 1.06 Yes 1063 2.969.36 22.55 97.9 2.1 0 0 Yes 1.05 Yes 1064 2.85 9.45 42.13 94.8 5.2 0 0Yes 1.24 Yes 1065 2.94 9.61 38.50 84.6 15.4 0 0 Yes 1.33 Yes 1066 2.119.85 64.13 89.3 10.7 0 0 Yes 1.27 Yes 1067 2.68 9.23 44.21 83.3 16.7 0 0Yes 1.05 Yes 1068 2.99 9.08 39.51 80.05 19.6 0.35 0 No 1.12 Yes 10691.82 9.87 78.64 85.5 14.5 0 0 No 1.23 Yes 1070 1.42 9.46 42.05 85 14.2 00.8 No 1.36 Yes 1071 2.12 9.28 64.58 87.3 12.7 0 0 No 1.11 Yes 1072 1.929.45 47.76 89.5 10.5 0 0 Yes 1.07 Yes 1073 2.11 9.63 24.10 87.3 11.8 00.9 Yes 1.42 Yes 1074 2.97 9.16 39.11 86.4 12.8 0.5 0.3 Yes 1.38 Yes1075 2.36 10.39 19.65 93.8 6.2 0 0 Yes 1.22 Yes 1076 3.05 10.56 65.3983.8 16.2 0 0 Yes 1.14 Yes 1077 2.15 10.74 48.57 80.4 19.6 0 0 Yes 1.13Yes Any of Coating details MgZn2, Total Mg2Zn11, metal Mg2Zn3, grainInvention MgZn, content Coat Example Mg7Zn3 of coat thickness Coating Nopresent? (Mass %) Base resin type (μm) method Corrosion Test Results1058 Yes 47 Urethane resin 112 Spray E 1059 Yes 48 Alkali silicate 24Spray E 1060 Yes 51 Urethane resin 150 Spray E 1061 Yes 53 Alkalisilicate 18 Spray E 1062 Yes 88 Alkyl silicate 19 Brush E 1063 Yes 85Alkyl silicate 24 Spray E 1064 Yes 83 Urethane resin 99 Spray E 1065 Yes82 Alkyl silicate 7 Spray E 1066 Yes 83 Epoxy resin 100 Spray E 1067 Yes47 Alkyl silicate 27 Brush E 1068 Yes 51 Alkali silicate 15 Spray E 1069Yes 52 Alkyl silicate 14 Spray E 1070 Yes 51 Urethane resin 55 Spray E1071 Yes 52 Alkyl silicate 8 Spray E 1072 Yes 89 Urethane resin 122Brush E 1073 Yes 85 Alkyl silicate 54 Spray E 1074 Yes 82 Alkalisilicate 19 Spray E 1075 Yes 87 Alkyl silicate 25 Brush E 1076 Yes 88Alkyl silicate 58 Spray E 1077 Yes 49 Alkyl silicate 21 Spray E

TABLE 57 Percent of Granularity fine-grain distribution metal Mg solid(Ave diameter) grains Zn alloy solution of Zn metal among Zn Chemicalcomponent grain phase and Zn—Mg grains/Zn metal content of Zn metalfracture intermetallic alloy grains grains/ grains/Zn alloy surfacescompounds Invention (μm) Zn alloy grains or Ave present on Example FineCoarse grains (Mass %) cracks aspect grain No metal metal (Vol %) Zn MgAl Si present? ratio surfaces? 1078 2.19 10.27 24.91 87.6 12.4 0 0 Yes1.02 Yes 1079 2.48 11.5 39.92 89.3 10.7 0 0 Yes 1.06 Yes 1080 2.85 11.6722.65 91.5 8.5 0 0 Yes 1.05 Yes 1081 2.75 11.85 66.20 94.9 5.1 0 0 Yes1.24 Yes 1082 2.46 11.38 49.38 75.5 24.5 0 0 Yes 1.33 Yes 1083 2.7112.61 30.58 86.5 13.5 0 0 Yes 1.27 Yes 1084 2.36 12.78 45.59 80 20 0 0Yes 1.05 Yes 1085 2.16 9.57 28.32 84.5 15.5 0 0 Yes 1.12 Yes 1086 2.469.81 71.87 88 10.5 1.5 0 Yes 1.23 Yes 1087 2.49 8.43 53.05 92.1 7.9 0 0Yes 1.36 Yes 1088 2.95 8.55 27.74 95.2 4.8 0 0 Yes 1.11 Yes 1089 2.368.22 42.75 81.6 18.4 0 0 Yes 1.07 Yes 1090 2.21 9.44 23.29 86.8 12.7 00.5 Yes 1.42 Yes 1091 2.25 9.58 61.12 89.7 10.3 0 0 No 1.38 Yes 10922.44 9.67 44.30 71.2 20.8 8 0 Yes 1.22 Yes 1093 2.78 9.83 23.96 97.5 2.50 0 No 1.14 Yes 1094 2.15 10.07 44.09 84.8 15.2 0 0 Yes 1.13 Yes 10952.19 9.45 24.63 80.8 19.2 0 0 No 1.02 Yes 1096 2.48 9.3 62.46 78.7 13.57.8 0 Yes 1.06 Yes 1097 2.59 9.99 45.64 88.1 11.9 0 0 No 1.05 Yes Any ofCoating details MgZn2, Total Mg2Zn11, metal Mg2Zn3, grain InventionMgZn, content Coat Example Mg7Zn3 of coat thickness Coating No present?(Mass %) Base resin type (μm) method Corrosion Test Results 1078 Yes 50Alkali silicate 19 Brush E 1079 Yes 51 Urethane resin 56 Spray E 1080Yes 52 Alkyl silicate 77 Spray E 1081 Yes 53 Alkyl silicate 12 Spray E1082 Yes 88 Alkyl silicate 64 Spray E 1083 Yes 85 Alkyl silicate 34Brush E 1084 Yes 83 Alkali silicate 28 Spray E 1085 Yes 81 Urethaneresin 109 Brush E 1086 Yes 80 Alkyl silicate 15 Spray E 1087 Yes 47Alkyl silicate 14 Spray E 1088 Yes 49 Alkyl silicate 18 Spray E 1089 Yes50 Urethane resin 122 Brush E 1090 Yes 51 Alkyl silicate 54 Spray E 1091Yes 52 Alkali silicate 19 Spray E 1092 Yes 83 Alkyl silicate 25 Brush E1093 Yes 88 Alkyl silicate 58 Spray E 1094 Yes 85 Alkyl silicate 21Spray E 1095 Yes 83 Alkali silicate 19 Brush E 1096 Yes 82 Urethaneresin 56 Spray E 1097 Yes 47 Alkyl silicate 77 Spray E

TABLE 58 Percent of Granularity fine-grain distribution metal Mg solid(Ave diameter) grains Zn alloy solution of Zn metal among Zn Chemicalcomponent grain phase and Zn—Mg grains/Zn metal content of Zn metalfracture intermetallic alloy grains grains/ grains/Zn alloy surfacescompounds Invention (μm) Zn alloy grains or Ave present on Example FineCoarse grains (Mass %) cracks aspect grain No metal metal (Vol %) Zn MgAl Si present? ratio surfaces? 1098 2.47 9.58 25.30 88.5 10.6 0 0.9 Yes1.24 Yes 1099 2.69 9.4 42.84 84.6 15.4 0 0 Yes 1.33 Yes 1100 2.57 9.5725.44 97.4 2.6 0 0 Yes 1.27 Yes 1101 2.49 9.54 63.27 83.3 16.7 0 0 Yes1.37 Yes 1102 2.68 9.58 46.45 91.9 8.1 0 0 Yes 1.10 Yes 1103 2.35 9.2546.45 86.3 13.7 0 0 Yes 1.04 Yes 1104 2.48 10.04 50.91 81.5 18.5 0 0 Yes1.02 Yes 1105 2.13 11.27 27.25 97.6 2.4 0 0 Yes 1.01 Yes 1106 1.93 11.4442.26 89.1 10.9 0 0 Yes 1.08 Yes 1107 2.05 8.9 33.69 92.8 7.2 0 0 Yes1.14 Yes 1108 1.42 8.75 48.70 81.96 17.5 0.5 0.04 No 1.23 Yes 1109 1.469.44 29.24 85.4 14.6 0 0 No 1.33 Yes 1110 1.75 9.03 67.07 90.6 9.4 0 0Yes 1.37 Yes 1111 1.86 8.85 50.25 92.9 7.1 0 0 Yes 1.44 Yes 1112 1.748.95 29.91 77.5 22.5 0 0 Yes 1.21 Yes 1113 1.96 12.54 87.50 84.8 13.71.5 0 No 1.22 Yes 1114 1.65 8.7 30.58 87.1 12.9 0 0 No 1.23 Yes 11152.35 8.55 68.41 95.7 4.3 0 0 Yes 1.47 Yes 1116 1.62 10.72 54.59 80.217.6 1 1.2 No 1.01 Yes 1117 2.25 9.9 34.25 98.8 0.6 0.6 0 Yes 1.04 YesAny of Coating details MgZn2, Total Mg2Zn11, metal Mg2Zn3, grainInvention MgZn, content Coat Example Mg7Zn3 of coat thickness Coating Nopresent? (Mass %) Base resin type (μm) method Corrosion Test Results1098 Yes 46 Alkyl silicate 54 Spray E 1099 Yes 49 Alkali silicate 2Spray G 1100 Yes 50 Alkali silicate 20 Spray E 1101 Yes 51 Alkalisilicate 5 Spray G 1102 Yes 83 Alkyl silicate 20 Spray E 1103 Yes 82Alkali silicate 15 Brush E 1104 Yes 88 Alkyl silicate 57 Brush E 1105Yes 85 Alkali silicate 13 Brush E 1106 Yes 86 Alkyl silicate 22 Brush E1107 Yes 47 Alkali silicate 20 Spray E 1108 Yes 48 Alkyl silicate 27Spray E 1109 Yes 50 Alkali silicate 15 Spray E 1110 Yes 51 Alkylsilicate 35 Spray E 1111 Yes 52 Alkali silicate 34 Brush E 1112 Yes 88Alkyl silicate 45 Brush E 1113 Yes 89 Alkali silicate 52 Brush E 1114Yes 86 Alkyl silicate 23 Brush E 1115 Yes 87 Alkali silicate 5 Spray E1116 Yes 86 Alkyl silicate 52 Brush E 1117 Yes 46 Alkali silicate 150Brush E

TABLE 59 Percent of Granularity fine-grain distribution metal Mg solid(Ave diameter) grains Zn alloy solution of Zn metal among Zn Chemicalcomponent grain phase and Zn—Mg grains/Zn metal content of Zn metalfracture intermetallic alloy grains grains/ grains/Zn alloy surfacescompounds Invention (μm) Zn alloy grains or Ave present on Example FineCoarse grains (Mass %) cracks aspect grain No metal metal (Vol %) Zn MgAl Si present? ratio surfaces? 1118 2.36 9.57 37.61 86.9 10.3 1.6 1.2Yes 1.05 Yes 1119 2.24 10.79 45.60 92.98 7 0.02 0 Yes 1.12 Yes 1120 2.4610.93 46.70 75.5 23.5 1 0 Yes 1.11 Yes 1121 1.56 11.02 41.22 82.5 17.5 00 No 1.08 Yes 1122 1.24 11.18 45.68 80.1 12.4 7.5 0 Yes 1.47 Yes 11231.68 11.42 22.02 85.09 14.9 0 0.01 Yes 1.50 Yes 1124 2.65 10.8 37.0378.7 20.7 0 0.6 No 1.13 Yes 1125 2.22 10.65 28.46 91.29 8.6 0 0.11 Yes1.26 Yes 1126 2.45 11.34 43.47 85.8 14.2 0 0 Yes 1.14 Yes 1127 2.2311.62 35.19 98.12 0.08 0 1.8 Yes 1.49 Yes 1128 2.26 11.15 73.02 83.4615.2 0 1.34 No 1.34 Yes 1129 2.72 12.38 56.20 73.17 17.4 9 0.43 Yes 1.18Yes 1130 2.13 12.55 35.86 98.6 0.8 0.6 0 Yes 1.17 Yes 1131 1.98 9.3493.45 93.55 6.4 0.05 0 Yes 1.48 Yes 1132 2.02 9.58 30.66 96.78 3.2 0.020 No 1.49 Yes 1133 2.21 9.88 74.21 83 9.2 7.8 0 Yes 1.27 Yes 1134 2.5510 55.39 70.92 19.2 9.88 0 Yes 1.17 Yes 1135 1.92 10.67 30.08 80.25 15.14.65 0 Yes 1.16 Yes 1136 1.96 11.89 45.09 81.85 14.5 3.65 0 Yes 1.27 Yes1137 2.11 12.03 41.41 89.45 10.5 0.05 0 Yes 1.27 Yes Any of Coatingdetails MgZn2, Total Mg2Zn11, metal Mg2Zn3, grain Invention MgZn,content Coat Example Mg7Zn3 of coat thickness Coating No present? (Mass%) Base resin type (μm) method Corrosion Test Results 1118 Yes 49 Alkylsilicate 60 Brush E 1119 Yes 35 Alkali silicate 15 Spray E 1120 Yes 37Alkyl silicate 24 Spray E 1121 Yes 36 Alkali silicate 34 Spray E 1122Yes 38 Alkyl silicate 20 Brush E 1123 Yes 48 Alkali silicate 200 Brush E1124 Yes 46 Alkyl silicate 56 Brush E 1125 Yes 51 Alkali silicate 34Spray E 1126 Yes 46 Alkyl silicate 2 Spray G 1127 Yes 38 Alkali silicate15 Spray E 1128 Yes 48 Alkali silicate 10 Spray E 1129 Yes 52 Alkylsilicate 125 Brush E 1130 Yes 30 Alkali silicate 24 Brush E 1131 Yes 76Alkyl silicate 110 Brush E 1132 Yes 72 Alkali silicate 24 Brush E 1133Yes 81 Alkyl silicate 2 Spray G 1134 Yes 64 Alkali silicate 37 Spray E1135 Yes 69 Alkyl silicate 113 Brush E 1136 Yes 83 Alkali silicate 2Spray G 1137 Yes 30 Alkyl silicate 75 Brush E

TABLE 60 Percent of Granularity fine-grain distribution metal Mg solid(Ave diameter) grains Zn alloy solution of Zn metal among Zn Chemicalcomponent grain phase and Zn—Mg grains/Zn metal content of Zn metalfracture intermetallic alloy grains grains/ grains/Zn alloy surfacescompounds Invention (μm) Zn alloy grains or Ave present on Example FineCoarse grains (Mass %) cracks aspect grain No metal metal (Vol %) Zn MgAl Si present? ratio surfaces? 1138 2.97 12.12 17.75 87.3 7.5 5.2 0 Yes1.49 Yes 1139 2.36 12.28 32.76 93.9 6.1 0 0.001 Yes 1.29 Yes 1140 3.0512.52 30.89 82.55 16.8 0.05 0.6 Yes 1.23 Yes 1141 2.57 11.9 45.90 70.727.5 1 0.8 Yes 1.23 Yes 1142 2.65 11.75 42.22 94.6 2.9 0 2.5 Yes 1.23Yes 1143 2.54 12.44 18.56 94 4.5 0 1.5 No 1.23 Yes 1144 2.85 12.03 33.5799.43 0.07 0 0.5 Yes 1.27 Yes 1145 2.75 10.61 31.70 96.82 3.1 0.04 0.04Yes 1.23 Yes 1146 2.46 11.3 46.71 76.3 20.5 1 2.2 Yes 1.36 Yes 1147 2.7111.58 47.89 68.84 29.5 0.06 1.6 Yes 1.11 Yes 1148 2.36 11.11 24.23 92.337.6 0.07 0 Yes 1.02 Yes 1149 2.16 12.34 39.24 95.2 0.7 1.2 2.9 Yes 1.05Yes 1150 2.46 12.51 37.37 91.8 4.6 1.8 1.8 Yes 1.24 Yes 1151 2.49 11.6450.38 82 8.3 9.2 0.5 Yes 1.33 Yes 1152 1.63 9.16 37.14 88.2 11.8 0 0 Yes1.27 Yes 1153 1.51 9.46 13.48 86.06 12.9 0 1.04 Yes 1.50 Yes 1154 3.059.54 40.05 99.34 0.6 0 0.06 Yes 1.13 Yes 1155 2.57 9.56 38.18 89.51 9.50 0.99 No 1.04 Yes 1156 2.65 9.46 7.63 88.3 11.7 0 0 Yes 1.02 Yes 11572.54 11.99 37.95 89.9 9.4 0.7 0 Yes 1.08 Yes Any of Coating detailsMgZn2, Total Mg2Zn11, metal Mg2Zn3, grain Invention MgZn, content CoatExample Mg7Zn3 of coat thickness Coating No present? (Mass %) Base resintype (μm) method Corrosion Test Results 1138 Yes 83 Alkali silicate 30Brush E 1139 Yes 75 Alkyl silicate 34 Brush E 1140 Yes 76 Epoxy resin124 Brush E 1141 Yes 72 Acrylic resin 15 Spray E 1142 Yes 71 Urethaneresin 23 Spray E 1143 Yes 82 Polyester resin 157 Brush E 1144 Yes 81Epoxy resin 26 Spray E 1145 Yes 83 Acrylic resin 38 Spray E 1146 Yes 50Urethane resin 160 Brush E 1147 Yes 72 Polyester resin 27 Brush E 1148Yes 47 Epoxy resin 180 Brush E 1149 Yes 47 Acrylic resin 26 Spray E 1150Yes 52 Urethane resin 180 Brush E 1151 Yes 52 Polyester resin 15 Spray E1152 Yes 50 Epoxy resin 2 Spray G 1153 Yes 46 Acrylic resin 28 Spray E1154 Yes 47 Urethane resin 30 Spray E 1155 Yes 83 Polyester resin 2Spray G 1156 Yes 52 Epoxy resin 157 Brush E 1157 Yes 89 Acrylic resin 28Brush E

TABLE 61 Percent of Granularity fine-grain distribution metal Mg solid(Ave diameter) grains Zn alloy solution of Zn metal among Zn Chemicalcomponent grain phase and Zn—Mg grains/Zn metal content of Zn metalfracture intermetallic alloy grains grains/ grains/Zn alloy surfacescompounds Invention (μm) Zn alloy grains or Ave present on Example FineCoarse grains (Mass %) cracks aspect grain No metal metal (Vol %) Zn MgAl Si present? ratio surfaces? 1158 2.85 12.08 14.29 87.8 11.7 0.5 0 Yes1.15 Yes 1159 2.75 12.24 40.86 95.6 4.2 0.2 0 Yes 1.34 Yes 1160 2.4612.48 97.50 97.13 2.8 0.07 0 Yes 1.25 Yes 1161 2.71 11.86 13.30 86.113.9 0 0 Yes 1.19 Yes 1162 2.36 11.71 43.62 82.6 14.6 1.6 1.2 No 1.18Yes 1163 2.46 11.35 56.93 72.95 26.4 0.65 0 Yes 1.24 Yes 1164 1.45 12.0236.59 83.23 16.5 0.27 0 Yes 1.11 Yes 1165 2.42 13.24 39.95 79.4 19.50.45 0.65 Yes 1.27 Yes 1166 2.11 9.46 86.50 97.08 1.6 0.33 0.99 Yes 1.31Yes 1167 2.97 13.47 32.87 90.5 6 1 2.5 Yes 1.26 Yes 1168 2.36 9.46 16.2388.93 8.4 0.87 1.8 Yes 1.14 Yes 1169 3.05 13.87 37.40 86.7 13.3 0 0 Yes1.34 Yes 1170 2.57 13.25 40.76 81.4 18.6 0 0 Yes 1.16 Yes 1171 2.65 13.187.31 97.34 1.8 0.86 0 No 1.47 Yes 1172 2.12 9.08 92.50 95.25 4.1 0.65 0Yes 1.48 Yes 1173 1.65 9.87 17.93 82.87 16.7 0.43 0 No 1.49 Yes 11742.35 9.46 44.50 99 0.4 0.6 0 Yes 1.34 Yes 1175 1.63 9.28 96.50 89.3510.6 0.05 0 Yes 1.29 Yes 1176 2.64 9.45 16.94 93.08 6.9 0.02 0 Yes 1.18Yes 1177 2.35 9.25 88.12 99.82 0.05 0.06 0.07 Yes 1.48 Yes Any ofCoating details MgZn2, Total Mg2Zn11, metal Mg2Zn3, grain InventionMgZn, content Coat Example Mg7Zn3 of coat thickness Coating No present?(Mass %) Base resin type (μm) method Corrosion Test Results 1158 Yes 85Alkyl silicate 130 Brush E 1159 Yes 53 Alkyl silicate 29 Brush E 1160Yes 88 Epoxy resin 30 Brush E 1161 Yes 85 Acrylic resin 120 Brush E 1162Yes 52 Urethane resin 187 Brush E 1163 Yes 83 Polyester resin 28 Spray E1164 Yes 88 Epoxy resin 5 Spray E 1165 Yes 49 Acrylic resin 35 Spray E1166 Yes 50 Urethane resin 5 Spray G 1167 Yes 51 Polyester resin 200Brush E 1168 Yes 83 Alkali silicate 25 Spray E 1169 Yes 82 Alkalisilicate 15 Spray E 1170 Yes 88 Alkyl silicate 20 Spray E 1171 Yes 85Alkali silicate 18 Spray E 1172 Yes 87 Alkyl silicate 22 Spray E 1173Yes 86 Alkali silicate 19 Spray E 1174 Yes 46 Alkyl silicate 29 Spray E1175 Yes 49 Alkali silicate 23 Spray E 1176 Yes 35 Alkyl silicate 21Spray E 1177 Yes 30 Alkali silicate 19 Spray E

TABLE 62 Percent of Granularity fine-grain distribution metal Mg solid(Ave diameter) grains Zn alloy solution of Zn metal among Zn Chemicalcomponent grain phase and Zn—Mg grains/Zn metal content of Zn metalfracture intermetallic alloy grains grains/ grains/Zn alloy surfacescompounds Invention (μm) Zn alloy grains or Ave present on Example FineCoarse grains (Mass %) cracks aspect grain No metal metal (Vol %) Zn MgAl Si present? ratio surfaces? 1178 2.31 9.46 60.57 91.56 6.4 1.05 0.99Yes 1.27 Yes 1179 2.62 9.46 39.48 93.36 3.5 2.6 0.54 Yes 1.17 Yes 11802.52 9.46 15.82 82.13 17.5 0.05 0.32 Yes 1.27 Yes 1181 2.24 13.32 49.5791.2 3.6 5.2 0 No 1.27 Yes 1182 0.05 6.54 86.52 94.1 5.9 0 0.001 Yes1.48 Yes 1183 2.42 6.35 90.98 83.2 16.2 0 0.6 No 1.49 Yes 1184 0.11 7.5467.32 76.7 22.5 0 0.8 Yes 1.34 Yes 1185 1.92 8.64 82.33 96.52 3.4 0.040.04 Yes 1.23 Yes 1186 0.46 6.45 73.76 68.3 26.5 3 2.2 Yes 1.23 Yes 11870.77 6.48 88.77 72.84 25.5 0.06 1.6 Yes 1.23 Yes 1188 2.35 9.25 45.0287.2 12.8 0 0 Yes 1.05 Yes 1189 2.33 9.46 15.2 91.5 8.5 0 0 Yes 1.06 Yes1190 1.95 9.32 51.41 75.23 24.5 0.27 0 Yes 1.38 Yes 1191 2.15 9.22 45.4677.48 18.4 2.55 1.57 Yes 1.06 Yes 1192 2.23 11.62 35.19 72.62 0.08 25.51.8 Yes 1.49 Yes 1193 2.26 11.15 73.02 64.06 15.2 19.4 1.34 No 1.34 Yes1194 1.98 9.34 93.45 83 6.4 10.6 0 Yes 1.48 Yes 1195 2.02 9.58 30.6686.4 3.2 10.4 0 No 1.49 Yes 1196 2.36 12.28 32.76 80.4 6.1 13.5 0.001Yes 1.29 Yes 1197 3.05 12.52 30.89 70.1 16.8 12.5 0.6 Yes 1.23 Yes 11982.57 11.9 45.90 60.9 27.5 10.8 0.8 Yes 1.23 Yes Any of Coating detailsMgZn2, Total Mg2Zn11, metal Mg2Zn3, grain Invention MgZn, content CoatExample Mg7Zn3 of coat thickness Coating No present? (Mass %) Base resintype (μm) method Corrosion Test Results 1178 Yes 76 Alkyl silicate 15Spray E 1179 Yes 72 Alkali silicate 18 Spray E 1180 Yes 30 Alkylsilicate 22 Spray E 1181 Yes 83 Alkyl silicate 21 Spray E 1182 Yes 75Alkyl silicate 29 Spray E 1183 Yes 76 Alkali silicate 23 Spray E 1184Yes 72 Alkyl silicate 21 Spray E 1185 Yes 83 Alkali silicate 19 Spray E1186 Yes 50 Alkyl silicate 21 Spray E 1187 Yes 72 Alkali silicate 19Spray E 1188 Yes 50 Acrylic resin 654 Spray E 1189 Yes 48 Alkalisilicate 700 Spray E 1190 Yes 75 Alkyl silicate 555 Spray E 1191 Yes 55Alkyl silicate 321 Spray E 1192 Yes 38 Alkyl silicate 152 Brush E 1193Yes 48 Urethane resin 674 Spray E 1194 Yes 76 Polyester resin 325 SprayE 1195 Yes 72 Alkyl silicate 665 Spray E 1196 Yes 75 Alkyl silicate 354Brush E 1197 Yes 76 Alkyl silicate 165 Spray E 1198 Yes 72 Urethaneresin 354 Spray E

TABLE 63 Percent of Granularity fine-grain distribution metal Mg solid(peak diameter) grains Zn alloy solution of Zn metal among Zn Chemicalcomponent grain phase and Zn—Mg grains/Zn metal content of Zn metalfracture intermetallic alloy grains grains/ grains/Zn alloy surfacescompounds Invention (μm) Zn alloy grains or Ave present on Example FineCoarse grains (Mass %) cracks aspect grain No metal metal (Vol %) Zn MgAl Si present? ratio surfaces? 1199 2.35 9.25 35.87 88.8 11.2 0 0 Yes1.12 Yes 1200 2.57 9.56 42.04 90.6 9.4 0 0 No 1.38 Yes 1201 2.56 9.846.55 81.45 18.5 0 0.05 Yes 1.22 Yes 1202 2.21 9.75 43.60 99.97 0.03 0 0Yes 1.14 Yes 1203 2.64 9.85 44.12 98.4 1.6 0 0 No 1.02 Yes 1204 1.998.56 37.21 93.2 6.8 0 0 Yes 1.05 Yes 1205 2.94 8.21 43.38 84.5 13.9 01.6 No 1.36 No 1206 2.58 8.33 13.52 98.1 1.9 0 0 Yes 1.11 No 1207 2.37 844.94 94.3 5.7 0 0 No 1.07 Yes 1208 2.15 9.22 45.46 90.8 9.2 0 0 No 1.42Yes 1209 2.96 9.36 35.96 83.3 15.4 0 1.3 Yes 1.38 No 1210 2.85 9.4542.13 79.84 18.6 0 1.56 Yes 1.22 No 1211 2.94 9.61 7.56 96.4 3.6 0 0 Yes1.14 Yes 1212 2.11 9.85 43.69 94.6 5.4 0 0 Yes 1.13 Yes 1213 2.68 9.2344.21 92.4 7.6 0 0 Yes 1.02 No 1214 2.99 9.08 39.51 75.5 24.5 0 0 Yes1.06 Yes 1215 2.78 9.87 45.68 82.4 17.6 0 0 Yes 1.05 Yes 1216 2.96 9.4665.58 98.6 1.4 0 0 Yes 1.24 No 1217 2.85 9.28 47.24 78.5 21.5 0 0 Yes1.33 No Any of Coating details MgZn2, Total Mg2Zn11, metal Mg2Zn3, grainInvention MgZn, Number content Coat Example Mg7Zn3 of of coat thicknessCoating No present? faces (Mass %) Base resin type (μm) method CorrosionTest Results 1199 Yes 2 49 Alkyl silicate 14 Spray E 1200 Yes 2 89Urethane resin 55 Spray E 1201 Yes 2 90 Alkyl silicate 8 Spray E 1202Yes 2 86 Urethane resin 122 Brush E 1203 Yes 6 48 Alkyl silicate 555Spray E 1204 Yes 6 47 Alkali silicate 19 Spray E 1205 Yes 7 47 Alkylsilicate 25 Brush E 1206 Yes 6 47 Alkyl silicate 58 Spray E 1207 Yes 252 Alkyl silicate 685 Spray E 1208 Yes 7 52 Alkali silicate 19 Brush E1209 Yes 2 52 Urethane resin 700 Spray E 1210 Yes 6 88 Alkyl silicate 77Spray E 1211 Yes 6 87 Alkyl silicate 54 Spray E 1212 Yes 2 89 Alkylsilicate 64 Spray E 1213 Yes 2 90 Alkyl silicate 34 Brush E 1214 Yes 791 Alkali silicate 28 Spray E 1215 Yes 6 46 Urethane resin 109 Brush E1216 Yes 7 47 Alkyl silicate 15 Spray E 1217 Yes 2 47 Alkyl silicate 14Spray E

TABLE 64 Percent of Granularity fine-grain distribution metal Mg solid(peak diameter) grains Zn alloy solution of Zn metal among Zn Chemicalcomponent grain phase and Zn—Mg grains/Zn metal content of Zn metalfracture intermetallic alloy grains grains/ grains/Zn alloy surfacescompounds Invention (μm) Zn alloy grains or Ave present on Example FineCoarse grains (Mass %) cracks aspect grain No metal metal (Vol %) Zn MgAl Si present? ratio surfaces? 1218 2.64 9.45 47.76 89.6 10.4 0 0 Yes1.27 Yes 1219 2.35 9.25 45.02 87.2 12.8 0 0 Yes 1.05 Yes 1220 2.12 9.4647.02 92.2 7.8 0 0 Yes 1.22 No 1221 2.34 9.46 7.66 70.5 29.5 0 0 Yes1.13 No 1222 2.33 9.46 15.20 91.5 8.5 0 0 Yes 1.06 Yes 1223 2.23 9.0643.16 74.5 25.5 0 0 Yes 1.05 Yes 1224 2.12 9.3 49.33 99.93 0.07 0 0 Yes1.24 Yes 1225 2.21 8.68 19.47 89.2 10.8 0 0 No 1.05 Yes 1226 1.38 8.5369.55 86 11.2 1.6 1.2 No 1.12 Yes 1227 1.95 9.32 51.41 75.23 24.5 0.27 0Yes 1.38 No 1228 2.26 8.95 75.88 82.6 17.4 0 0 Yes 1.13 No 1229 2.0512.54 48.08 98.7 1.3 0 0 Yes 1.33 Yes 1230 1.65 8.7 66.85 80.5 19.5 0 0Yes 1.27 Yes 1231 2.35 8.55 7.68 88.85 10.8 0.05 0.3 No 1.23 No 12321.62 8.91 8.64 87.7 11.9 0.4 0 Yes 1.11 Yes 1233 1.88 9.91 16.58 90.59.5 0 0 Yes 1.42 Yes 1234 2.35 9.25 35.87 89.5 10.5 0 0 Yes 1.06 No 12352.57 9.56 42.04 84.9 15.1 0 0 Yes 1.05 Yes 1236 2.56 9.84 38.41 83.216.8 0 0 Yes 1.07 Yes Any of Coating details MgZn2, Total Mg2Zn11, metalMg2Zn3, grain Invention MgZn, Number content Coat Example Mg7Zn3 of ofcoat thickness Coating No present? faces (Mass %) Base resin type (μm)method Corrosion Test Results 1218 Yes 7 49 Alkyl silicate 18 Spray E1219 Yes 6 50 Alkali silicate 2 Spray G 1220 Yes 7 87 Alkyl silicate 37Spray E 1221 Yes 6 83 Alkali silicate 12 Spray E 1222 Yes 7 48 Alkylsilicate 160 Brush E 1223 Yes 6 51 Alkali silicate 5 Brush G 1224 Yes 251 Alkyl silicate 56 Brush E 1225 Yes 7 87 Alkali silicate 2 Spray G1226 Yes 6 85 Alkyl silicate 18 Spray E 1227 Yes 6 86 Alkyl silicate 23Spray E 1228 Yes 6 50 Epoxy resin 30 Brush E 1229 Yes 2 51 Acrylic resin77 Brush E 1230 Yes 6 51 Urethane resin 655 Brush E 1231 Yes 7 80Polyester resin 47 Spray E 1232 Yes 2 46 Epoxy resin 43 Spray E 1233 Yes6 51 Acrylic resin 52 Brush E 1234 Yes 2 86 Urethane resin 20 Brush E1235 Yes 6 85 Polyester resin 200 Brush E 1236 Yes 7 82 Alkali silicate22 Spray E

TABLE 65 Percent of Granularity fine-grain distribution metal Mg solid(peak diameter) grains Zn alloy solution of Zn metal among Zn Chemicalcomponent grain phase and Zn—Mg grains/Zn metal content of Zn metalfracture intermetallic alloy grains grains/ grains/Zn alloy surfacescompounds Invention (μm) Zn alloy grains or Ave present on Example FineCoarse grains (Mass %) cracks aspect grain No metal metal (Vol %) Zn MgAl Si present? ratio surfaces? 1237 2.21 9.75 6.99 89.4 10.6 0 0 Yes1.42 No 1238 2.64 9.85 44.12 84.3 13.3 2.4 0 Yes 1.38 Yes 1239 2.65 8.5666.99 98.6 1.40 0 0 No 1.22 Yes 1240 2.94 8.21 43.38 76.45 23.5 0 0.05Yes 1.14 Yes 1241 2.58 8.33 39.75 91.1 8.9 0 0 Yes 1.13 Yes 1242 2.37 865.38 85.1 14.9 0 0 Yes 1.02 Yes 1243 2.15 9.22 45.46 77.48 18.4 2.551.57 Yes 1.06 Yes 1244 2.96 9.36 22.55 97.9 2.1 0 0 Yes 1.05 Yes 12452.85 9.45 42.13 94.8 5.2 0 0 Yes 1.24 Yes 1246 2.94 9.61 38.50 84.6 15.40 0 Yes 1.33 Yes 1247 2.11 9.85 64.13 89.3 10.7 0 0 Yes 1.27 Yes 12482.68 9.23 44.21 83.3 16.7 0 0 Yes 1.05 Yes 1249 2.99 9.08 39.51 80.0519.6 0.35 0 No 1.12 Yes 1250 1.82 9.87 78.64 85.5 14.5 0 0 No 1.23 Yes1251 1.42 9.46 42.05 85 14.2 0 0.8 No 1.36 Yes 1252 2.12 9.28 64.58 87.312.7 0 0 No 1.11 Yes 1253 1.92 9.45 47.76 89.5 10.5 0 0 Yes 1.07 Yes1254 2.11 9.63 24.10 87.3 11.8 0 0.9 Yes 1.42 Yes 1255 2.97 9.16 39.1186.4 12.8 0.5 0.3 Yes 1.38 Yes Any of Coating details MgZn2, TotalMg2Zn11, metal Mg2Zn3, grain Invention MgZn, Number content Coat ExampleMg7Zn3 of of coat thickness Coating No present? faces (Mass %) Baseresin type (μm) method Corrosion Test Results 1237 Yes 7 81 Alkylsilicate 25 Spray E 1238 Yes 2 46 Alkali silicate 14 Spray E 1239 Yes 247 Urethane resin 112 Spray E 1240 Yes 6 48 Alkali silicate 24 Spray E1241 Yes 7 51 Urethane resin 150 Spray E 1242 Yes 6 53 Alkali silicate18 Spray E 1243 Yes 7 88 Alkyl silicate 19 Brush E 1244 Yes 6 85 Alkylsilicate 24 Spray E 1245 Yes 2 83 Urethane resin 99 Spray E 1246 Yes 282 Alkyl silicate 7 Spray E 1247 Yes 6 83 Epoxy resin 100 Spray E 1248Yes 7 47 Alkyl silicate 27 Brush E 1249 Yes 6 51 Alkali silicate 15Spray E 1250 Yes 6 52 Alkyl silicate 14 Spray E 1251 Yes 2 51 Urethaneresin 55 Spray E 1252 Yes 7 52 Alkyl silicate 8 Spray E 1253 Yes 2 89Urethane resin 122 Brush E 1254 Yes 2 85 Alkyl silicate 54 Spray E 1255Yes 6 82 Alkali silicate 19 Spray E

TABLE 66 Percent of Granularity fine-grain distribution metal Mg solid(peak diameter) grains Zn alloy solution of Zn metal among Zn Chemicalcomponent grain phase and Zn—Mg grains/Zn metal content of Zn metalfracture intermetallic alloy grains grains/ grains/Zn alloy surfacescompounds Invention (μm) Zn alloy grains or Ave present on Example FineCoarse grains (Mass %) cracks aspect grain No metal metal (Vol %) Zn MgAl Si present? ratio surfaces? 1256 2.36 10.39 19.65 93.8 6.2 0 0 Yes1.22 Yes 1257 3.05 10.56 65.39 83.8 16.2 0 0 Yes 1.14 Yes 1258 2.1510.74 48.57 80.4 19.6 0 0 Yes 1.13 Yes 1259 2.19 10.27 24.91 87.6 12.4 00 Yes 1.02 Yes 1260 2.48 11.5 39.92 89.3 10.7 0 0 Yes 1.06 Yes 1261 2.8511.67 22.65 91.5 8.5 0 0 Yes 1.05 Yes 1262 2.75 11.85 66.20 94.9 5.1 0 0Yes 1.24 Yes 1263 2.46 11.38 49.38 75.5 24.5 0 0 Yes 1.33 Yes 1264 2.7112.61 30.58 86.5 13.5 0 0 Yes 1.27 Yes 1265 2.36 12.78 45.59 80 20 0 0Yes 1.05 Yes 1266 2.16 9.57 28.32 84.5 15.5 0 0 Yes 1.12 Yes 1267 2.469.81 71.87 88 10.5 1.5 0 Yes 1.23 Yes 1268 2.49 8.43 53.05 92.1 7.9 0 0Yes 1.36 Yes 1269 2.95 8.55 27.74 95.2 4.8 0 0 Yes 1.11 Yes 1270 2.368.22 42.75 81.6 18.4 0 0 Yes 1.07 Yes 1271 2.21 9.44 23.29 86.8 12.7 00.5 Yes 1.42 Yes 1272 2.25 9.58 61.12 89.7 10.3 0 0 No 1.38 Yes 12732.44 9.67 44.30 71.2 20.8 8 0 Yes 1.22 Yes 1274 2.78 9.83 23.96 97.5 2.50 0 No 1.14 Yes Any of Coating details MgZn2, Total Mg2Zn11, metalMg2Zn3, grain Invention MgZn, Number content Coat Example Mg7Zn3 of ofcoat thickness Coating No present? faces (Mass %) Base resin type (μm)method Corrosion Test Results 1256 Yes 7 87 Alkyl silicate 25 Brush E1257 Yes 7 88 Alkyl silicate 58 Spray E 1258 Yes 6 49 Alkyl silicate 21Spray E 1259 Yes 7 50 Alkali silicate 19 Brush E 1260 Yes 7 51 Urethaneresin 56 Spray E 1261 Yes 6 52 Alkyl silicate 77 Spray E 1262 Yes 7 53Alkyl silicate 12 Spray E 1263 Yes 2 88 Alkyl silicate 64 Spray E 1264Yes 7 85 Alkyl silicate 34 Brush E 1265 Yes 7 83 Alkali silicate 28Spray E 1266 Yes 2 81 Urethane resin 109 Brush E 1267 Yes 6 80 Alkylsilicate 15 Spray E 1268 Yes 6 47 Alkyl silicate 14 Spray E 1269 Yes 749 Alkyl silicate 18 Spray E 1270 Yes 7 50 Urethane resin 122 Brush E1271 Yes 6 51 Alkyl silicate 54 Spray E 1272 Yes 7 52 Alkali silicate 19Spray E 1273 Yes 2 83 Alkyl silicate 25 Brush E 1274 Yes 2 88 Alkylsilicate 58 Spray E

TABLE 67 Percent of Granularity fine-grain distribution metal Mg solid(peak diameter) grains Zn alloy solution of Zn metal among Zn Chemicalcomponent grain phase and Zn—Mg grains/Zn metal content of Zn metalfracture intermetallic alloy grains grains/ grains/Zn alloy surfacescompounds Invention (μm) Zn alloy grains or Ave present on Example FineCoarse grains (Mass %) cracks aspect grain No metal metal (Vol %) Zn MgAl Si present? ratio surfaces? 1275 2.15 10.07 44.09 84.8 15.2 0 0 Yes1.13 Yes 1276 2.19 9.45 24.63 80.8 19.2 0 0 No 1.02 Yes 1277 2.48 9.362.46 78.7 13.5 7.8 0 Yes 1.06 Yes 1278 2.59 9.99 45.64 88.1 11.9 0 0 No1.05 Yes 1279 2.47 9.58 25.30 88.5 10.6 0 0.9 Yes 1.24 Yes 1280 2.69 9.442.84 84.6 15.4 0 0 Yes 1.33 Yes 1281 2.57 9.57 25.44 97.4 2.6 0 0 Yes1.27 Yes 1282 2.49 9.54 63.27 83.3 16.7 0 0 Yes 1.37 Yes 1283 2.68 9.5846.45 91.9 8.1 0 0 Yes 1.10 Yes 1284 2.35 9.25 46.45 86.3 13.7 0 0 Yes1.04 Yes 1285 2.48 10.04 50.91 81.5 18.5 0 0 Yes 1.02 Yes 1286 2.1311.27 27.25 97.6 2.4 0 0 Yes 1.01 Yes 1287 1.93 11.44 42.26 89.1 10.9 00 Yes 1.08 Yes 1288 2.05 8.9 33.69 92.8 7.2 0 0 Yes 1.14 Yes 1289 1.428.75 48.70 81.96 17.5 0.5 0.04 No 1.23 Yes 1290 1.46 9.44 29.24 85.414.6 0 0 No 1.33 Yes 1291 1.75 9.03 67.07 90.6 9.4 0 0 Yes 1.37 Yes 12921.86 8.85 50.25 92.9 7.1 0 0 Yes 1.44 Yes 1293 1.74 8.95 29.91 77.5 22.50 0 Yes 1.21 Yes Any of Coating details MgZn2, Total Mg2Zn11, metalMg2Zn3, grain Invention MgZn, Number content Coat Example Mg7Zn3 of ofcoat thickness Coating No present? faces (Mass %) Base resin type (μm)method Corrosion Test Results 1275 Yes 6 85 Alkyl silicate 21 Spray E1276 Yes 7 83 Alkali silicate 19 Brush E 1277 Yes 6 82 Urethane resin 56Spray E 1278 Yes 2 47 Alkyl silicate 77 Spray E 1279 Yes 2 46 Alkylsilicate 54 Spray E 1280 Yes 7 49 Alkali silicate 2 Spray G 1281 Yes 650 Alkali silicate 20 Spray E 1282 Yes 7 51 Alkali silicate 5 Spray G1283 Yes 7 83 Alkyl silicate 20 Spray E 1284 Yes 6 82 Alkali silicate 15Brush E 1285 Yes 2 88 Alkyl silicate 57 Brush E 1286 Yes 7 85 Alkalisilicate 13 Brush E 1287 Yes 2 86 Alkyl silicate 22 Brush E 1288 Yes 247 Alkali silicate 20 Spray E 1289 Yes 7 48 Alkyl silicate 27 Spray E1290 Yes 2 50 Alkali silicate 15 Spray E 1291 Yes 7 51 Alkyl silicate 35Spray E 1292 Yes 2 52 Alkali silicate 34 Brush E 1293 Yes 6 88 Alkylsilicate 45 Brush E

TABLE 68 Percent of Granularity fine-grain distribution metal Mg solid(peak diameter) grains Zn alloy solution Any of of Zn metal among ZnChemical component grain phase and Zn—Mg MgZn2, grains/Zn metal contentof Zn metal fracture intermetallic Mg2Zn11, alloy grains grains/grains/Zn alloy surfaces compounds Mg2Zn3, Invention (μm) Zn alloygrains or Ave present on MgZn, Example Fine Coarse grains (Mass %)cracks aspect grain Mg7Zn3 No metal metal (Vol %) Zn Mg Al Si present?ratio surfaces? present? 1294 1.96 12.54 87.50 84.8 13.7 1.5 0 No 1.22Yes Yes 1295 1.65 8.7 30.58 87.1 12.9 0 0 No 1.23 Yes Yes 1296 2.35 8.5568.41 95.7 4.3 0 0 Yes 1.47 Yes Yes 1297 1.62 10.72 54.59 80.2 17.6 11.2 No 1.01 Yes Yes 1298 2.25 9.9 34.25 98.8 0.6 0.6 0 Yes 1.04 Yes Yes1299 2.36 9.57 37.61 86.9 10.3 1.6 1.2 Yes 1.05 Yes Yes 1300 2.24 10.7945.60 92.98 7 0.02 0 Yes 1.12 Yes Yes 1301 2.46 10.93 46.70 75.5 23.5 10 Yes 1.11 Yes Yes 1302 1.56 11.02 41.22 82.5 17.5 0 0 No 1.08 Yes Yes1303 1.24 11.18 45.68 80.1 12.4 7.5 0 Yes 1.47 Yes Yes 1304 1.68 11.4222.02 85.09 14.9 0 0.01 Yes 1.50 Yes Yes 1305 2.65 10.8 37.03 78.7 20.70 0.6 No 1.13 Yes Yes 1306 2.22 10.65 28.46 91.29 8.6 0 0.11 Yes 1.26Yes Yes 1307 2.45 11.34 43.47 85.8 14.2 0 0 Yes 1.14 Yes Yes 1308 2.2311.62 35.19 98.12 0.08 0 1.8 Yes 1.49 Yes Yes 1309 2.26 11.15 73.0283.46 15.2 0 1.34 No 1.34 Yes Yes 1310 2.72 12.38 56.20 73.17 17.4 90.43 Yes 1.18 Yes Yes 1311 2.13 12.55 35.86 98.6 0.8 0.6 0 Yes 1.17 YesYes 1312 1.98 9.34 93.45 93.55 6.4 0.05 0 Yes 1.48 Yes Yes Coatingdetails Total metal grain Invention Number content Coat Example of ofcoat thickness Coating No faces (Mass %) Base resin type (μm) methodCorrosion Test Results 1294 6 89 Alkali silicate 52 Brush E 1295 7 86Alkyl silicate 23 Brush E 1296 6 87 Alkali silicate 5 Spray E 1297 2 86Alkyl silicate 52 Brush E 1298 2 46 Alkali silicate 150 Brush E 1299 249 Alkyl silicate 60 Brush E 1300 2 35 Alkali silicate 15 Spray E 1301 237 Alkyl silicate 24 Spray E 1302 2 36 Alkali silicate 34 Spray E 1303 638 Alkyl silicate 20 Brush E 1304 6 48 Alkali silicate 200 Brush E 13057 46 Alkyl silicate 56 Brush E 1306 6 51 Alkali silicate 34 Spray E 13072 46 Alkyl silicate 2 Spray G 1308 7 38 Alkali silicate 15 Spray E 13092 48 Alkali silicate 10 Spray E 1310 6 52 Alkyl silicate 125 Brush E1311 6 30 Alkali silicate 24 Brush E 1312 2 76 Alkyl silicate 110 BrushE

TABLE 69 Percent of Granularity fine-grain distribution metal Mg solid(peak diameter) grains Zn alloy solution Any of of Zn metal among ZnChemical component grain phase and Zn—Mg MgZn2, grains/Zn metal contentof Zn metal fracture intermetallic Mg2Zn11, alloy grains grains/grains/Zn alloy surfaces compounds Mg2Zn3, Invention (μm) Zn alloygrains or Ave present on MgZn, Example Fine Coarse grains (Mass %)cracks aspect grain Mg7Zn3 No metal metal (Vol %) Zn Mg Al Si present?ratio surfaces? present? 1313 2.02 9.58 30.66 96.78 3.2 0.02 0 No 1.49Yes Yes 1314 2.21 9.88 74.21 83 9.2 7.8 0 Yes 1.27 Yes Yes 1315 2.55 1055.39 70.92 19.2 9.88 0 Yes 1.17 Yes Yes 1316 1.92 10.67 30.08 80.2515.1 4.65 0 Yes 1.16 Yes Yes 1317 1.96 11.89 45.09 81.85 14.5 3.65 0 Yes1.27 Yes Yes 1318 2.11 12.03 41.41 89.45 10.5 0.05 0 Yes 1.27 Yes Yes1319 2.97 12.12 17.75 87.3 7.5 5.2 0 Yes 1.49 Yes Yes 1320 2.36 12.2832.76 93.9 6.1 0 0.001 Yes 1.29 Yes Yes 1321 3.05 12.52 30.89 82.55 16.80.05 0.6 Yes 1.23 Yes Yes 1322 2.57 11.9 45.90 70.7 27.5 1 0.8 Yes 1.23Yes Yes 1323 2.65 11.75 42.22 94.6 2.9 0 2.5 Yes 1.23 Yes Yes 1324 2.5412.44 18.56 94 4.5 0 1.5 No 1.23 Yes Yes 1325 2.85 12.03 33.57 99.430.07 0 0.5 Yes 1.27 Yes Yes 1326 2.75 10.61 31.70 96.82 3.1 0.04 0.04Yes 1.23 Yes Yes 1327 2.46 11.3 46.71 76.3 20.5 1 2.2 Yes 1.36 Yes Yes1328 2.71 11.58 47.89 68.84 29.5 0.06 1.6 Yes 1.11 Yes Yes 1329 2.3611.11 24.23 92.33 7.6 0.07 0 Yes 1.02 Yes Yes 1330 2.16 12.34 39.24 95.20.7 1.2 2.9 Yes 1.05 Yes Yes 1331 2.46 12.51 37.37 91.8 4.6 1.8 1.8 Yes1.24 Yes Yes Coating details Total metal grain Invention Number contentCoat Example of of coat thickness Coating No faces (Mass %) Base resintype (μm) method Corrosion Test Results 1313 2 72 Alkali silicate 24Brush E 1314 7 81 Alkyl silicate 2 Spray G 1315 6 64 Alkali silicate 37Spray E 1316 7 69 Alkyl silicate 113 Brush E 1317 2 83 Alkali silicate 2Spray G 1318 7 30 Alkyl silicate 75 Brush E 1319 6 83 Alkali silicate 30Brush E 1320 7 75 Alkyl silicate 34 Brush E 1321 6 76 Epoxy resin 124Brush E 1322 7 72 Acrylic resin 15 Spray E 1323 6 71 Urethane resin 23Spray E 1324 2 82 Polyester resin 157 Brush E 1325 7 81 Epoxy resin 26Spray E 1326 6 83 Acrylic resin 38 Spray E 1327 6 50 Urethane resin 160Brush E 1328 6 72 Polyester resin 27 Brush E 1329 2 47 Epoxy resin 180Brush E 1330 6 47 Acrylic resin 26 Spray E 1331 7 52 Urethane resin 180Brush E

TABLE 70 Percent of Granularity fine-grain distribution metal Mg solid(Ave diameter) grains Zn alloy solution Any of of Zn metal among ZnChemical component grain phase and Zn—Mg MgZn2, grains/Zn metal contentof Zn metal fracture intermetallic Mg2Zn11, alloy grains grains/grains/Zn alloy surfaces compounds Mg2Zn3, Invention (μm) Zn alloygrains or Ave present on MgZn, Example Fine Coarse grains (Mass %)cracks aspect grain Mg7Zn3 No metal metal (Vol %) Zn Mg Al Si present?ratio surfaces? present? 1380 2.35 9.25 35.87 88.8 11.2 0 0 Yes 1.12 YesYes 1381 2.57 9.56 42.04 90.6 9.4 0 0 No 1.38 Yes Yes 1382 2.56 9.846.55 81.45 18.5 0 0.05 Yes 1.22 Yes Yes 1383 2.21 9.75 43.60 99.97 0.030 0 Yes 1.14 Yes Yes 1384 2.64 9.85 44.12 98.4 1.6 0 0 No 1.02 Yes Yes1385 1.99 8.56 37.21 93.2 6.8 0 0 Yes 1.05 Yes Yes 1386 2.94 8.21 43.3884.5 13.9 0 1.6 No 1.36 No Yes 1387 2.58 8.33 13.52 98.1 1.9 0 0 Yes1.11 No Yes 1388 2.37 8 44.94 94.3 5.7 0 0 No 1.07 Yes Yes 1389 2.159.22 45.46 90.8 9.2 0 0 No 1.42 Yes Yes 1390 2.96 9.36 35.96 83.3 15.4 01.3 Yes 1.38 No Yes 1391 2.85 9.45 42.13 79.84 18.6 0 1.56 Yes 1.22 NoYes 1392 2.94 9.61 7.56 96.4 3.6 0 0 Yes 1.14 Yes Yes 1393 2.11 9.8543.69 94.6 5.4 0 0 Yes 1.13 Yes Yes 1394 2.68 9.23 44.21 92.4 7.6 0 0Yes 1.02 No Yes 1395 2.99 9.08 39.51 75.5 24.5 0 0 Yes 1.06 Yes Yes 13962.78 9.87 45.68 82.4 17.6 0 0 Yes 1.05 Yes Yes 1397 2.96 9.46 65.58 98.61.4 0 0 Yes 1.24 No Yes 1398 2.85 9.28 47.24 78.5 21.5 0 0 Yes 1.33 NoYes 1399 2.64 9.45 47.76 89.6 10.4 0 0 Yes 1.27 Yes Yes Coating detailsTotal metal grain Invention Number content Coat Example of of coatthickness Coating No faces (Mass %) Base resin type (μm) methodCorrosion Test Results 1380 2 49 Alkyl silicate 14 Spray E 1381 2 89Urethane resin 55 Spray E 1382 2 90 Alkyl silicate 8 Spray E 1383 2 86Urethane resin 122 Brush E 1384 6 48 Alkyl silicate 555 Spray E 1385 647 Alkali silicate 19 Spray E 1386 7 47 Alkyl silicate 25 Brush E 1387 647 Alkyl silicate 58 Spray E 1388 2 52 Alkyl silicate 685 Spray E 1389 752 Alkali silicate 19 Brush E 1390 2 52 Urethane resin 700 Spray E 13916 88 Alkyl silicate 77 Spray E 1392 6 87 Alkyl silicate 54 Spray E 13932 89 Alkyl silicate 64 Spray E 1394 2 90 Alkyl silicate 34 Brush E 13957 91 Alkali silicate 28 Spray E 1396 6 46 Urethane resin 109 Brush E1397 7 47 Alkyl silicate 15 Spray E 1398 2 47 Alkyl silicate 14 Spray E1399 7 49 Alkyl silicate 18 Spray E

TABLE 71 Percent of Granularity fine-grain distribution metal Mg solid(Ave diameter) grains Zn alloy solution Any of of Zn metal among ZnChemical component grain phase and Zn—Mg MgZn2, grains/Zn metal contentof Zn metal fracture intermetallic Mg2Zn11, alloy grains grains/grains/Zn alloy surfaces compounds Mg2Zn3, Invention (μm) Zn alloygrains or Ave present on MgZn, Example Fine Coarse grains (Mass %)cracks aspect grain Mg7Zn3 No metal metal (Vol %) Zn Mg Al Si present?ratio surfaces? present? 1400 2.35 9.25 45.02 87.2 12.8 0 0 Yes 1.05 YesYes 1401 2.12 9.46 47.02 92.2 7.8 0 0 Yes 1.22 No Yes 1402 2.34 9.467.66 70.5 29.5 0 0 Yes 1.13 No Yes 1403 2.33 9.46 15.20 91.5 8.5 0 0 Yes1.06 Yes Yes 1404 2.23 9.06 43.16 74.5 25.5 0 0 Yes 1.05 Yes Yes 14052.12 9.3 49.33 99.93 0.07 0 0 Yes 1.24 Yes Yes 1406 2.21 8.68 19.47 89.210.8 0 0 No 1.05 Yes Yes 1407 1.38 8.53 69.55 86 11.2 1.6 1.2 No 1.12Yes Yes 1408 1.95 9.32 51.41 75.23 24.5 0.27 0 Yes 1.38 No Yes 1409 2.268.95 75.88 82.6 17.4 0 0 Yes 1.13 No Yes 1410 2.05 12.54 48.08 98.7 1.30 0 Yes 1.33 Yes Yes 1411 1.65 8.7 66.85 80.5 19.5 0 0 Yes 1.27 Yes Yes1412 2.35 8.55 7.68 88.85 10.8 0.05 0.3 No 1.23 No Yes 1413 1.62 8.918.64 87.7 11.9 0.4 0 Yes 1.11 Yes Yes 1414 1.88 9.91 16.58 90.5 9.5 0 0Yes 1.42 Yes Yes 1415 2.35 9.25 35.87 89.5 10.5 0 0 Yes 1.06 No Yes 14162.57 9.56 42.04 84.9 15.1 0 0 Yes 1.05 Yes Yes 1417 2.56 9.84 38.41 83.216.8 0 0 Yes 1.07 Yes Yes 1418 2.21 9.75 6.99 89.4 10.6 0 0 Yes 1.42 NoYes 1419 2.64 9.85 44.12 84.3 13.3 2.4 0 Yes 1.38 Yes Yes Coatingdetails Total metal grain Invention Number content Coat Example of ofcoat thickness Coating No faces (Mass %) Base resin type (μm) methodCorrosion Test Results 1400 6 50 Alkali silicate 2 Spray G 1401 7 87Alkyl silicate 37 Spray E 1402 6 83 Alkali silicate 12 Spray E 1403 7 48Alkyl silicate 160 Brush E 1404 6 51 Alkali silicate 5 Brush G 1405 2 51Alkyl silicate 56 Brush E 1406 7 87 Alkali silicate 2 Spray G 1407 6 85Alkyl silicate 18 Spray E 1408 6 86 Alkyl silicate 23 Spray E 1409 6 50Epoxy resin 30 Brush E 1410 2 51 Acrylic resin 77 Brush E 1411 6 51Urethane resin 655 Brush E 1412 7 80 Polyester resin 47 Spray E 1413 246 Epoxy resin 43 Spray E 1414 6 51 Acrylic resin 52 Brush E 1415 2 86Urethane resin 20 Brush E 1416 6 85 Polyester resin 200 Brush E 1417 782 Alkali silicate 22 Spray E 1418 7 81 Alkyl silicate 25 Spray E 1419 246 Alkali silicate 14 Spray E

TABLE 72 Percent of Granularity fine-grain distribution metal Mg solid(Ave diameter) grains Zn alloy solution Any of of Zn metal among ZnChemical component grain phase and Zn—Mg MgZn2, grains/Zn metal contentof Zn metal fracture intermetallic Mg2Zn11, alloy grains grains/grains/Zn alloy surfaces compounds Mg2Zn3, Invention (μm) Zn alloygrains or Ave present on MgZn, Example Fine Coarse grains (Mass %)cracks aspect grain Mg7Zn3 No metal metal (Vol %) Zn Mg Al Si present?ratio surfaces? present? 1420 2.65 8.56 66.99 98.6 1.4 0 0 No 1.22 YesYes 1421 2.94 8.21 43.38 76.45 23.5 0 0.05 Yes 1.14 Yes Yes 1422 2.588.33 39.75 91.1 8.9 0 0 Yes 1.13 Yes Yes 1423 2.37 8 65.38 85.1 14.9 0 0Yes 1.02 Yes Yes 1424 2.15 9.22 45.46 77.48 18.4 2.55 1.57 Yes 1.06 YesYes 1425 2.96 9.36 22.55 97.9 2.1 0 0 Yes 1.05 Yes Yes 1426 2.85 9.4542.13 94.8 5.2 0 0 Yes 1.24 Yes Yes 1427 2.94 9.61 38.50 84.6 15.4 0 0Yes 1.33 Yes Yes 1428 2.11 9.85 64.13 89.3 10.7 0 0 Yes 1.27 Yes Yes1429 2.68 9.23 44.21 83.3 16.7 0 0 Yes 1.05 Yes Yes 1430 2.99 9.08 39.5180.05 19.6 0.35 0 No 1.12 Yes Yes 1431 1.82 9.87 78.64 85.5 14.5 0 0 No1.23 Yes Yes 1432 1.42 9.46 42.05 85 14.2 0 0.8 No 1.36 Yes Yes 14332.12 9.28 64.58 87.3 12.7 0 0 No 1.11 Yes Yes 1434 1.92 9.45 47.76 89.510.5 0 0 Yes 1.07 Yes Yes 1435 2.11 9.63 24.10 87.3 11.8 0 0.9 Yes 1.42Yes Yes 1436 2.97 9.16 39.11 86.4 12.8 0.5 0.3 Yes 1.38 Yes Yes 14372.36 10.39 19.65 93.8 6.2 0 0 Yes 1.22 Yes Yes 1438 3.05 10.56 65.3983.8 16.2 0 0 Yes 1.14 Yes Yes 1439 2.15 10.74 48.57 80.4 19.6 0 0 Yes1.13 Yes Yes Coating details Total metal grain Invention Number contentCoat Example of of coat thickness Coating No faces (Mass %) Base resintype (μm) method Corrosion Test Results 1420 2 47 Urethane resin 112Spray E 1421 6 48 Alkali silicate 24 Spray E 1422 7 51 Urethane resin150 Spray E 1423 6 53 Alkali silicate 18 Spray E 1424 7 88 Alkylsilicate 19 Brush E 1425 6 85 Alkyl silicate 24 Spray E 1426 2 83Urethane resin 99 Spray E 1427 2 82 Alkyl silicate 7 Spray E 1428 6 83Epoxy resin 100 Spray E 1429 7 47 Alkyl silicate 27 Brush E 1430 6 51Alkali silicate 15 Spray E 1431 6 52 Alkyl silicate 14 Spray E 1432 2 51Urethane resin 55 Spray E 1433 7 52 Alkyl silicate 8 Spray E 1434 2 89Urethane resin 122 Brush E 1435 2 85 Alkyl silicate 54 Spray E 1436 6 82Alkali silicate 19 Spray E 1437 7 87 Alkyl silicate 25 Brush E 1438 7 88Alkyl silicate 58 Spray E 1439 6 49 Alkyl silicate 21 Spray E

TABLE 73 Percent of Granularity fine-grain distribution metal Mg solid(Ave diameter) grains Zn alloy solution Any of of Zn metal among ZnChemical component grain phase and Zn—Mg MgZn2, grains/Zn metal contentof Zn metal fracture intermetallic Mg2Zn11, alloy grains grains/grains/Zn alloy surfaces compounds Mg2Zn3, Invention (μm) Zn alloygrains or Ave present on MgZn, Example Fine Coarse grains (Mass %)cracks aspect grain Mg7Zn3 No metal metal (Vol %) Zn Mg Al Si present?ratio surfaces? present? 1440 2.19 10.27 24.91 87.6 12.4 0 0 Yes 1.02Yes Yes 1441 2.48 11.5 39.92 89.3 10.7 0 0 Yes 1.06 Yes Yes 1442 2.8511.67 22.65 91.5 8.5 0 0 Yes 1.05 Yes Yes 1443 2.75 11.85 66.20 94.9 5.10 0 Yes 1.24 Yes Yes 1444 2.46 11.38 49.38 75.5 24.5 0 0 Yes 1.33 YesYes 1445 2.71 12.61 30.58 86.5 13.5 0 0 Yes 1.27 Yes Yes 1446 2.36 12.7845.59 80 20 0 0 Yes 1.05 Yes Yes 1447 2.16 9.57 28.32 84.5 15.5 0 0 Yes1.12 Yes Yes 1448 2.46 9.81 71.87 88 10.5 1.5 0 Yes 1.23 Yes Yes 14492.49 8.43 53.05 92.1 7.9 0 0 Yes 1.36 Yes Yes 1450 2.95 8.55 27.74 95.24.8 0 0 Yes 1.11 Yes Yes 1451 2.36 8.22 42.75 81.6 18.4 0 0 Yes 1.07 YesYes 1452 2.21 9.44 23.29 86.8 12.7 0 0.5 Yes 1.42 Yes Yes 1453 2.25 9.5861.12 89.7 10.3 0 0 No 1.38 Yes Yes 1454 2.44 9.67 44.30 71.2 20.8 8 0Yes 1.22 Yes Yes 1455 2.78 9.83 23.96 97.5 2.5 0 0 No 1.14 Yes Yes 14562.15 10.07 44.09 84.8 15.2 0 0 Yes 1.13 Yes Yes 1457 2.19 9.45 24.6380.8 19.2 0 0 No 1.02 Yes Yes 1458 2.48 9.3 62.46 78.7 13.5 7.8 0 Yes1.06 Yes Yes 1459 2.59 9.99 45.64 88.1 11.9 0 0 No 1.05 Yes Yes Coatingdetails Total metal grain Invention Number content Coat Example of ofcoat thickness Coating No faces (Mass %) Base resin type (μm) methodCorrosion Test Results 1440 7 50 Alkali silicate 19 Brush E 1441 7 51Urethane resin 56 Spray E 1442 6 52 Alkyl silicate 77 Spray E 1443 7 53Alkyl silicate 12 Spray E 1444 2 88 Alkyl silicate 64 Spray E 1445 7 85Alkyl silicate 34 Bursh E 1446 7 83 Alkali silicate 28 Spray E 1447 2 81Urethane resin 109 Bursh E 1448 6 80 Alkyl silicate 15 Spray E 1449 6 47Alkyl silicate 14 Spray E 1450 7 49 Alkyl silicate 18 Spray E 1451 7 50Urethane resin 122 Brush E 1452 6 51 Alkyl silicate 54 Spray E 1453 7 52Alkali silicate 19 Spray E 1454 2 83 Alkyl silicate 25 Brush E 1455 2 88Alkyl silicate 58 Spray E 1456 6 85 Alkyl silicate 21 Spray E 1457 7 83Alkali silicate 19 Brush E 1458 6 82 Urethane resin 56 Spray E 1459 2 47Alkyl silicate 77 Spray E

TABLE 74 Percent of Granularity fine-grain distribution metal Mg solid(Ave diameter) grains Zn alloy solution Any of of Zn metal among ZnChemical component grain phase and Zn—Mg MgZn2, grains/Zn metal contentof Zn metal fracture intermetallic Mg2Zn11, alloy grains grains/grains/Zn alloy surfaces compounds Mg2Zn3, Invention (μm) Zn alloygrains or Ave present on MgZn, Example Fine Coarse grains (Mass %)cracks aspect grain Mg7Zn3 No metal metal (Vol %) Zn Mg Al Si present?ratio surfaces? present? 1460 2.47 9.58 25.30 88.5 10.6 0 0.9 Yes 1.24Yes Yes 1461 2.69 9.4 42.84 84.6 15.4 0 0 Yes 1.33 Yes Yes 1462 2.579.57 25.44 97.4 2.6 0 0 Yes 1.27 Yes Yes 1463 2.49 9.54 63.27 83.3 16.70 0 Yes 1.37 Yes Yes 1464 2.68 9.58 46.45 91.9 8.1 0 0 Yes 1.10 Yes Yes1465 2.35 9.25 46.45 86.3 13.7 0 0 Yes 1.04 Yes Yes 1466 2.48 10.0450.91 81.5 18.5 0 0 Yes 1.02 Yes Yes 1467 2.13 11.27 27.25 97.6 2.4 0 0Yes 1.01 Yes Yes 1468 1.93 11.44 42.26 89.1 10.9 0 0 Yes 1.08 Yes Yes1469 2.05 8.9 33.69 92.8 7.2 0 0 Yes 1.14 Yes Yes 1470 1.42 8.75 48.7081.96 17.5 0.5 0.04 No 1.23 Yes Yes 1471 1.46 9.44 29.24 85.4 14.6 0 0No 1.33 Yes Yes 1472 1.75 9.03 67.07 90.6 9.4 0 0 Yes 1.37 Yes Yes 14731.86 8.85 50.25 92.9 7.1 0 0 Yes 1.44 Yes Yes 1474 1.74 8.95 29.91 77.522.5 0 0 Yes 1.21 Yes Yes 1475 1.96 12.54 87.50 84.8 13.7 1.5 0 No 1.22Yes Yes 1476 1.65 8.7 30.58 87.1 12.9 0 0 No 1.23 Yes Yes 1477 2.35 8.5568.41 95.7 4.3 0 0 Yes 1.47 Yes Yes 1478 1.62 10.72 54.59 80.2 17.6 11.2 No 1.01 Yes Yes 1479 2.25 9.9 34.25 98.8 0.6 0.6 0 Yes 1.04 Yes YesCoating details Total metal grain Invention Number content Coat Exampleof of coat thickness Coating No faces (Mass %) Base resin type (μm)method Corrosion Test Results 1460 2 46 Alkyl silicate 54 Spray E 1461 749 Alkali silicate 2 Spray G 1462 6 50 Alkali silicate 20 Spray E 1463 751 Alkali silicate 5 Spray G 1464 7 83 Alkyl silicate 20 Spray E 1465 682 Alkali silicate 15 Brush E 1466 2 88 Alkyl silicate 57 Brush E 1467 785 Alkali silicate 13 Brush E 1468 2 86 Alkyl silicate 22 Brush E 1469 247 Alkali silicate 20 Spray E 1470 7 48 Alkyl silicate 27 Spray E 1471 250 Alkali silicate 15 Spray E 1472 7 51 Alkyl silicate 35 Spray E 1473 252 Alkali silicate 34 Brush E 1474 6 88 Alkyl silicate 45 Brush E 1475 689 Alkali silicate 52 Brush E 1476 7 86 Alkyl silicate 23 Brush E 1477 687 Alkali silicate 5 Spray E 1478 2 86 Alkyl silicate 52 Brush E 1479 246 Alkali silicate 150 Brush E

TABLE 75 Percent of Granularity fine-grain distribution metal Mg solid(Ave diameter) grains Zn alloy solution Any of of Zn metal among ZnChemical component grain phase and Zn—Mg MgZn2, grains/Zn metal contentof Zn metal fracture intermetallic Mg2Zn11, alloy grains grains/grains/Zn alloy surfaces compounds Mg2Zn3, Invention (μm) Zn alloygrains or Ave present on MgZn, Example Fine Coarse grains (Mass %)cracks aspect grain Mg7Zn3 No metal metal (Vol %) Zn Mg Al Si present?ratio surfaces? present? 1480 2.36 9.57 37.61 86.9 10.3 1.6 1.2 Yes 1.05Yes Yes 1481 2.24 10.79 45.60 92.98 7 0.02 0 Yes 1.12 Yes Yes 1482 2.4610.93 46.70 75.5 23.5 1 0 Yes 1.11 Yes Yes 1483 1.56 11.02 41.22 82.517.5 0 0 No 1.08 Yes Yes 1484 1.24 11.18 45.68 80.1 12.4 7.5 0 Yes 1.47Yes Yes 1485 1.68 11.42 22.02 85.09 14.9 0 0.01 Yes 1.50 Yes Yes 14862.65 10.8 37.03 78.7 20.7 0 0.6 No 1.13 Yes Yes 1487 2.22 10.65 28.4691.29 8.6 0 0.11 Yes 1.26 Yes Yes 1488 2.45 11.34 43.47 85.8 14.2 0 0Yes 1.14 Yes Yes 1489 2.23 11.62 35.19 98.12 0.08 0 1.8 Yes 1.49 Yes Yes1490 2.26 11.15 73.02 83.46 15.2 0 1.34 No 1.34 Yes Yes 1491 2.72 12.3856.20 73.17 17.4 9 0.43 Yes 1.18 Yes Yes 1492 2.13 12.55 35.86 98.6 0.80.6 0 Yes 1.17 Yes Yes 1493 1.98 9.34 93.45 93.55 6.4 0.05 0 Yes 1.48Yes Yes 1494 2.02 9.58 30.66 96.78 3.2 0.02 0 No 1.49 Yes Yes 1495 2.219.88 74.21 83 9.2 7.8 0 Yes 1.27 Yes Yes 1496 2.55 10 55.39 70.92 19.29.88 0 Yes 1.17 Yes Yes 1497 1.92 10.67 30.08 80.25 15.1 4.65 0 Yes 1.16Yes Yes 1498 1.96 11.89 45.09 81.85 14.5 3.65 0 Yes 1.27 Yes Yes 14992.11 12.03 41.41 89.45 10.5 0.05 0 Yes 1.27 Yes Yes Coating detailsTotal metal grain Invention Number content Coat Example of of coatthickness Coating No faces (Mass %) Base resin type (μm) methodCorrosion Test Results 1480 2 49 Alkyl silicate 60 Brush E 1481 2 35Alkali silicate 15 Spray E 1482 2 37 Alkyl silicate 24 Spray E 1483 2 36Alkali silicate 34 Spray E 1484 6 38 Alkyl silicate 20 Brush E 1485 6 48Alkali silicate 200 Brush E 1486 7 46 Alkyl silicate 56 Brush E 1487 651 Alkali silicate 34 Spray E 1488 2 46 Alkyl silicate 2 Spray G 1489 738 Alkali silicate 15 Spray E 1490 2 48 Alkali silicate 10 Spray E 14916 52 Alkyl silicate 125 Brush E 1492 6 30 Alkali silicate 24 Brush E1493 2 76 Alkyl silicate 110 Brush E 1494 2 72 Alkali silicate 24 BrushE 1495 7 81 Alkyl silicate 2 Spray G 1496 6 64 Alkali silicate 37 SprayE 1497 7 69 Alkyl silicate 113 Brush E 1498 2 83 Alkali silicate 2 SprayG 1499 7 30 Alkyl silicate 75 Brush E

TABLE 76 Percent of Granularity fine-grain distribution metal Mg solid(Ave diameter) grains Zn alloy solution Any of of Zn metal among ZnChemical component grain phase and Zn—Mg MgZn2, grains/Zn metal contentof Zn metal fracture intermetallic Mg2Zn11, alloy grains grains/grains/Zn alloy surfaces compounds Mg2Zn3, Invention (μm) Zn alloygrains or Ave present on MgZn, Example Fine Coarse grains (Mass %)cracks aspect grain Mg7Zn3 No metal metal (Vol %) Zn Mg Al Si present?ratio surfaces? present? 1500 2.97 12.12 17.75 87.3 7.5 5.2 0 Yes 1.49Yes Yes 1501 2.36 12.28 32.76 93.9 6.1 0 0.001 Yes 1.29 Yes Yes 15023.05 12.52 30.89 82.55 16.8 0.05 0.6 Yes 1.23 Yes Yes 1503 2.57 11.945.90 70.7 27.5 1 0.8 Yes 1.23 Yes Yes 1504 2.65 11.75 42.22 94.6 2.9 02.5 Yes 1.23 Yes Yes 1505 2.54 12.44 18.56 94 4.5 0 1.5 No 1.23 Yes Yes1506 2.85 12.03 33.57 99.43 0.07 0 0.5 Yes 1.27 Yes Yes 1507 2.75 10.6131.70 96.82 3.1 0.04 0.04 Yes 1.23 Yes Yes 1508 2.46 11.3 46.71 76.320.5 1 2.2 Yes 1.36 Yes Yes 1509 2.71 11.58 47.89 68.84 29.5 0.06 1.6Yes 1.11 Yes Yes 1510 2.36 11.11 24.23 92.33 7.6 0.07 0 Yes 1.02 Yes Yes1511 2.16 12.34 39.24 95.2 0.7 1.2 2.9 Yes 1.05 Yes Yes 1512 2.46 12.5137.37 91.8 4.6 1.8 1.8 Yes 1.24 Yes Yes 1513 2.49 11.64 50.38 82 8.3 9.20.5 Yes 1.33 Yes Yes 1514 1.63 9.16 37.14 88.2 11.8 0 0 Yes 1.27 Yes Yes1515 1.51 9.46 13.48 86.06 12.9 0 1.04 Yes 1.50 Yes Yes 1516 3.05 9.5440.05 99.34 0.6 0 0.06 Yes 1.13 Yes Yes 1517 2.57 9.56 38.18 89.51 9.5 00.99 No 1.04 Yes Yes 1518 2.65 9.46 7.63 88.3 11.7 0 0 Yes 1.02 Yes Yes1519 2.54 11.99 37.95 89.9 9.4 0.7 0 Yes 1.08 Yes Yes Coating detailsTotal metal grain Invention Number content Coat Example of of coatthickness Coating No faces (Mass %) Base resin type (μm) methodCorrosion Test Results 1500 6 83 Alkali silicate 30 Brush E 1501 7 75Alkyl silicate 34 Brush E 1502 6 76 Epoxy resin 124 Brush E 1503 7 72Acrylic resin 15 Spray E 1504 6 71 Urethane resin 23 Spray E 1505 2 82Polyester resin 157 Brush E 1506 7 81 Epoxy resin 26 Spray E 1507 6 83Acrylic resin 38 Spray E 1508 6 50 Urethane resin 160 Brush E 1509 6 72Polyester resin 27 Brush E 1510 2 47 Epoxy resin 180 Brush E 1511 6 47Acrylic resin 26 Spray E 1512 7 52 Urethane resin 180 Brush E 1513 2 52Polyester resin 15 Spray E 1514 6 50 Epoxy resin 2 Spray G 1515 2 46Acrylic resin 28 Spray E 1516 6 47 Urethane resin 30 Spray E 1517 7 83Polyester resin 2 Spray G 1518 7 52 Epoxy resin 157 Brush E 1519 2 89Acrylic resin 28 Brush E

TABLE 77 Percent of Granularity fine-grain distribution metal Mg solid(Ave diameter) grains Zn alloy solution Any of of Zn metal among ZnChemical component grain phase and Zn—Mg MgZn2, grains/Zn metal contentof Zn metal fracture intermetallic Mg2Zn11, alloy grains grains/grains/Zn alloy surfaces compounds Mg2Zn3, Invention (μm) Zn alloygrains or Ave present on MgZn, Example Fine Coarse grains (Mass %)cracks aspect grain Mg7Zn3 No metal metal (Vol %) Zn Mg Al Si present?ratio surfaces? present? 1520 2.85 12.08 14.29 87.8 11.7 0.5 0 Yes 1.15Yes Yes 1521 2.75 12.24 40.86 95.6 4.2 0.2 0 Yes 1.34 Yes Yes 1522 2.4612.48 97.50 97.13 2.8 0.07 0 Yes 1.25 Yes Yes 1523 2.71 11.86 13.30 86.113.9 0 0 Yes 1.19 Yes Yes 1524 2.36 11.71 43.62 82.6 14.6 1.6 1.2 No1.18 Yes Yes 1525 2.46 11.35 56.93 72.95 26.4 0.65 0 Yes 1.24 Yes Yes1526 1.45 12.02 36.59 83.23 16.5 0.27 0 Yes 1.11 Yes Yes 1527 2.42 13.2439.95 79.4 19.5 0.45 0.65 Yes 1.27 Yes Yes 1528 2.11 9.46 86.50 97.081.6 0.33 0.99 Yes 1.31 Yes Yes 1529 2.97 13.47 32.87 90.5 6 1 2.5 Yes1.26 Yes Yes 1530 2.36 9.46 16.23 88.93 8.4 0.87 1.8 Yes 1.14 Yes Yes1531 3.05 13.87 37.40 86.7 13.3 0 0 Yes 1.34 Yes Yes 1532 2.57 13.2540.76 81.4 18.6 0. 0 Yes 1.16 Yes Yes 1533 2.65 13.1 87.31 97.34 1.80.86 0 No 1.47 Yes Yes 1534 2.12 9.08 92.50 95.25 4.1 0.65 0 Yes 1.48Yes Yes 1535 1.65 9.87 17.93 82.87 16.7 0.43 0 No 1.49 Yes Yes 1536 2.359.46 44.50 99 0.4 0.6 0 Yes 1.34 Yes Yes 1537 1.63 9.28 96.50 89.35 10.60.05 0 Yes 1.29 Yes Yes 1538 2.64 9.45 16.94 93.08 6.9 0.02 0 Yes 1.18Yes Yes 1539 2.35 9.25 88.12 99.82 0.05 0.06 0.07 Yes 1.48 Yes YesCoating details Total metal grain Invention Number content Coat Exampleof of coat thickness Coating No faces (Mass %) Base resin type (μm)method Corrosion Test Results 1520 2 85 Alkyl silicate 130 Brush E 15216 53 Alkyl silicate 29 Brush E 1522 7 88 Epoxy resin 30 Brush E 1523 685 Acrylic resin 120 Brush E 1524 7 52 Urethane resin 187 Brush E 1525 683 Polyester resin 28 Spray E 1526 2 88 Epoxy resin 5 Spray E 1527 2 49Acrylic resin 35 Spray E 1528 6 50 Urethane resin 5 Spray G 1529 7 51Polyester resin 200 Brush E 1530 6 83 Alkali silicate 25 Spray E 1531 682 Alkali silicate 15 Spray E 1532 2 88 Alkyl silicate 20 Spray E 1533 785 Alkali silicate 18 Spray E 1534 2 87 Alkyl silicate 22 Spray E 1535 286 Alkali silicate 19 Spray E 1536 6 46 Alkyl silicate 29 Spray E 1537 749 Alkali silicate 23 Spray E 1538 7 35 Alkyl silicate 21 Spray E 1539 630 Alkali silicate 19 Spray E

TABLE 78 Percent of Granularity fine-grain distribution metal Mg solid(Ave diameter) grains Zn alloy solution Any of of Zn metal among ZnChemical component grain phase and Zn—Mg MgZn2, grains/Zn metal contentof Zn metal fracture intermetallic Mg2Zn11, alloy grains grains/grains/Zn alloy surfaces compounds Mg2Zn3, Invention (μm) Zn alloygrains or Ave present on MgZn, Example Fine Coarse grains (Mass %)cracks aspect grain Mg7Zn3 No metal metal (Vol %) Zn Mg Al Si present?ratio surfaces? present? 1540 2.31 9.46 60.57 91.56 6.4 1.05 0.99 Yes1.27 Yes Yes 1541 2.62 9.46 39.48 93.36 3.5 2.6 0.54 Yes 1.17 Yes Yes1542 2.52 9.46 15.82 82.13 17.5 0.05 0.32 Yes 1.27 Yes Yes 1543 2.2413.32 49.57 91.2 3.6 5.2 0 No 1.27 Yes Yes 1544 0.05 6.54 86.52 94.1 5.90 0.001 Yes 1.48 Yes Yes 1545 2.42 6.35 90.98 83.2 16.2 0 0.6 No 1.49Yes Yes 1546 0.11 7.54 67.32 76.7 22.5 0 0.8 Yes 1.34 Yes Yes 1547 1.928.64 82.33 96.52 3.4 0.04 0.04 Yes 1.23 Yes Yes 1548 0.46 6.45 73.7668.3 26.5 3 2.2 Yes 1.23 Yes Yes 1549 0.77 6.48 88.77 72.84 25.5 0.061.6 Yes 1.23 Yes Yes 1550 2.35 9.25 45.02 87.2 12.8 0 0 Yes 1.05 Yes Yes1551 2.33 9.46 15.2 91.5 8.5 0 0 Yes 1.06 Yes Yes 1552 1.95 9.32 51.4175.23 24.5 0.27 0 Yes 1.38 Yes Yes 1553 2.15 9.22 45.46 77.48 18.4 2.551.57 Yes 1.06 Yes Yes 1554 2.23 11.62 35.19 72.62 0.08 25.5 1.8 Yes 1.49Yes Yes 1555 2.26 11.15 73.02 64.06 15.2 19.4 1.34 No 1.34 Yes Yes 15561.98 9.34 93.45 83 6.4 10.6 0 Yes 1.48 Yes Yes 1557 2.02 9.58 30.66 86.43.2 10.4 0 No 1.49 Yes Yes 1558 2.36 12.28 32.76 80.4 6.1 13.5 0.001 Yes1.29 Yes Yes 1559 3.05 12.52 30.89 70.1 16.8 12.5 0.6 Yes 1.23 Yes Yes1560 2.57 11.9 45.90 60.9 27.5 10.8 0.8 Yes 1.23 Yes Yes Coating detailsTotal metal grain Invention Number content Coat Example of of coatthickness Coating No faces (Mass %) Base resin type (μm) methodCorrosion Test Results 1540 7 76 Alkyl silicate 15 Spray E 1541 7 72Alkali silicate 18 Spray E 1542 6 30 Alkyl silicate 22 Spray E 1543 7 83Alkyl silicate 21 Spray E 1544 2 75 Alkyl silicate 29 Spray E 1545 7 76Alkali silicate 23 Spray E 1546 7 72 Alkyl silicate 21 Spray E 1547 2 83Alkali silicate 19 Spray E 1548 6 50 Alkyl silicate 21 Spray E 1549 6 72Alkali silicate 19 Spray E 1550 2 50 Acrylic resin 654 Spray E 1551 6 48Alkali silicate 700 Spray E 1552 7 75 Alkyl silicate 555 Spray E 1553 755 Alkyl silicate 321 Spray E 1554 6 38 Alkyl silicate 152 Brush E 15557 48 Urethane resin 674 Spray E 1556 7 76 Polyester resin 325 Spray E1557 6 72 Alkyl silicate 665 Spray E 1558 7 75 Alkyl silicate 354 BrushE 1559 6 76 Alkyl silicate 165 Spray E 1560 7 72 Urethane resin 354Spray E

TABLE 79 Granularity Percent of distribution fine-grain Ratio of fine ofZn metal metal grains metal grains/ grains Total in coat Zn alloy amongZn Chemical component metal outermost Inven- grains (Ave metal contentof Zn metal grain surface layer tion Average grain diameter) grains/grains/Zn alloy content 10% thickness Coat Exam- grain (μm) Zn alloygrains of to total fine thickness Time to red ple diameter Fine Coarsegrains (Mass %) coat metal grains (μm) rusting No (μm) metal metal (Vol%) Zn Mg Al Si (Mass %) (Mass %) Inorganic Organic Organic Inorganic 374— 2.35 9.25 35.87 96.0 8.9 0 0 47 55.7 24.6 125 E E 375 — 2.49 9.5642.04 97.5 7.8 0 0 80 64.5 23.8 167 E E 376 — 1.99 9.84 6.55 98.4 5.6 00 52 68.9 15.2 28 E E 377 — 2.21 8.64 66.80 95.5 10.2 0 0 89 64.7 10.634 E E 378 — 2.64 10.55 80.03 96.2 5.6 0 0 34 77.9 10.7 256 E E 379 —2.55 8.56 67.55 98.0 7.8 0 0 78 43.7 15 24 G G 380 — 2.94 9.99 43.3894.5 8.9 0 0 34 7.8 10.5 96 G G 381 — 1.98 8.98 13.52 94.0 6.0 0 0 8916.0 14.5 94 G G 382 — 2.37 8.99 68.14 97.5 12.6 0 0 90 89.6 12.3 93 E E383 — 2.15 9.22 81.37 93.2 6.8 0 0 86 11.8 8.6 95 G G 384 — 2.96 9.3666.30 94.5 5.5 0 0 53 4.6 17.5 92 G G 385 — 2.85 9.45 42.13 93.6 6.4 0 048 2.5 12.6 95 G G 386 — 2.94 9.61 7.56 94.1 5.9 0 0 46 18.9 10.4 91 G G387 — 2.11 9.85 66.89 93.5 6.5 0.54 0.55 47 75.9 10.9 90 E E 388 — 2.689.23 80.12 97.6 2.4 0 0.66 49 55.9 19 99 E E 389 — 1.99 9.08 39.51 94.55.5 0 0.07 83 53.8 25.6 98 E E 390 — 1.76 9.87 45.68 91.75 7.5 0.6 0.1585 97.5 28.6 97 E E 391 — 2.66 9.46 65.58 90.4 9.5 0.05 0.05 90 88.424.7 94 E E 392 — 2.85 9.28 70.44 90.4 8.6 0.02 0.98 89 54.8 22.9 93 E E393 — 2.64 9.45 83.67 91.1 7.9 1 0 88 45.7 52.3 83 G G

TABLE 80 Granularity Percent of distribution fine-grain Ratio of fine ofZn metal metal grains metal grains/ grains Total in coat Zn alloy amongZn Chemical component metal outermost Inven- grains (Ave metal contentof Zn metal grain surface layer tion Average grain diameter) grains/grains/Zn alloy content 10% thickness Coat Exam- grain (μm) Zn alloygrains of to total fine thickness Time to red ple diameter Fine Coarsegrains (Mass %) coat metal grains (μm) rusting No (μm) metal metal (Vol%) Zn Mg Al Si (Mass %) (Mass %) Inorganic Organic Organic Inorganic 394— 2.35 9.25 80.93 81.1 13.7 5.2 0 47 34.7 56.3 88 G G 395 — 2.12 9.4647.02 89.2 9.8 1 0 47 57.9 33.3 89 E E 396 — 2.26 10.54 7.66 89.45 10.50.05 0 52 65.4 34.5 87 E E 397 — 1.76 9.55 15.20 82.93 16.4 0.07 0.6 5287.9 23.5 86 E E 398 — 2.23 9.06 73.50 95.3 3.9 0 0.8 52 2.9 26.7 85 G G399 — 2.12 9.3 49.33 95 2.5 0 2.5 88 12.6 195 243 G G 400 — 2.21 8.6819.47 93.46 6 0 0.54 49 53.8 23 74 E E 401 — 1.38 8.53 69.55 94.1 5 00.9 35 17.8 23 63 G G 402 — 1.95 9.32 87.32 96.7 2.8 0 0.5 37 34.7 31.283 G G 403 — 1.26 8.95 75.88 98.5 0.5 0.3 0.7 36 76.8 37.5 82 E E 404 —1.03 10.99 7.77 94.52 5.4 0.02 0.06 80 58.9 12.5 81 E E 405 — 1.65 8.743.55 95.65 3.5 0.05 0.8 48 50.8 10.2 89 E E 406 — 2.35 8.55 7.68 89 3.35.2 2.5 46 46.8 14.5 96 G G 407 — 1.62 9.99 8.64 94.98 3.5 0.02 1.5 5223.7 16.3 95 G G 408 — 1.88 9.91 16.58 89.5 5 4.6 0.9 51 53.8 15.8 99 EE 409 — 2.35 9.25 35.87 91.45 8.5 0.05 0 47 53.8 19 89 E E 410 — 2.579.56 42.04 97.58 2.4 0.02 0 48 43.7 25.6 89 G G 411 — 2.56 9.84 38.4194.58 0.56 0.02 0.06 49 55.9 28.6 98 E E 412 — 2.21 9.75 6.99 95.65 1.550.05 0.8 51 65.8 24.7 96 E E

TABLE 81 Percent Diameter of fine- distribution grain (peak metal Mgsolid diameter) of grains Alloy solution phase Any of Zn metal among ZnChemical component grain and Zn—Mg MgZn2, grains/Zn metal content of Znmetal fracture intermetallic Mg2Zn11, alloy grains grains/ grains/Znalloy surfaces compounds Mg2Zn3, Invention (μm) Zn alloy grains or Avepresent on MgZn, Number Example Fine Coarse grains (Mass %) cracksaspect grain Mg7Zn3 of No metal metal (Vol %) Zn Mg Al Si present? ratiosurfaces? present? faces 1561 2.35 9.25 35.87 88.8 11.2 0 0 Yes 1.12 YesYes 2 1562 2.57 9.56 42.04 90.6 9.4 0 0 No 1.38 Yes Yes 2 1563 2.56 9.846.55 81.45 18.5 0 0.5 Yes 1.22 Yes Yes 2 1564 2.21 9.75 43.60 99.97 0.030 0 Yes 1.14 Yes Yes 2 1565 2.64 9.85 44.12 98.4 1.6 0 0 No 1.02 Yes Yes6 1566 1.99 8.56 37.21 93.2 6.8 0 0 Yes 1.05 Yes Yes 6 1567 2.94 8.2143.38 84.5 13.9 0 1.6 No 1.36 No Yes 7 1568 2.58 8.33 13.52 98.1 1.9 0 0Yes 1.11 No Yes 6 1569 2.37 8 44.94 94.3 5.7 0 0 No 1.07 Yes Yes 2 15702.15 9.22 45.46 90.8 9.2 0 0 No 1.42 Yes Yes 7 1571 2.96 9.36 35.96 83.315.4 0 1.3 Yes 1.38 No Yes 2 1572 2.85 9.45 42.13 79.84 18.6 0 1.56 Yes1.22 No Yes 6 1573 2.94 9.61 7.56 96.4 3.6 0 0 Yes 1.14 Yes Yes 6 15742.11 9.85 43.69 94.6 5.4 0 0 Yes 1.13 Yes Yes 2 1575 2.68 9.23 44.2192.4 7.6 0 0 Yes 1.02 No Yes 2 1576 2.99 9.08 39.51 75.5 24.5 0 0 Yes1.06 Yes Yes 7 1577 2.78 9.87 45.68 82.4 17.6 0 0 Yes 1.05 Yes Yes 61578 2.96 9.46 65.58 98.6 1.4 0 0 Yes 1.24 No Yes 7 1579 2.85 9.28 47.2478.5 21.5 0 0 Yes 1.33 No Yes 2 1580 2.64 9.45 47.76 89.6 10.4 0 0 Yes1.27 Yes Yes 7 Coating details Ratio of fine metal grains in coatoutermost surface layer 10% Total thickness metal to total grainInvention fine metal content Coat Example grains of coat thicknessCoating No (Mass %) (Mass %) Base resin type (μm) method Corrosion TestResults 1561 55.7 49 Alkyl silicate 14 Spray E 1562 64.5 89 Urethaneresin 55 Spray E 1563 68.9 90 Alkyl silicate 8 Spray E 1564 64.7 86Urethane resin 122 Brush E 1565 77.9 48 Alkyl silicate 555 Spray E 156643.7 47 Alkali silicate 19 Spray E 1567 7.8 47 Alkyl silicate 25 Brush E1568 16.0 47 Alkyl silicate 58 Spray E 1569 89.6 52 Alkyl silicate 685Spray E 1570 11.8 52 Alkali silicate 19 Brush E 1571 4.6 52 Urethaneresin 700 Spray E 1572 2.5 88 Alkyl silicate 77 Spray E 1573 18.9 87Alkyl silicate 54 Spray E 1574 75.9 89 Alkyl silicate 64 Spray E 157555.9 90 Alkyl silicate 34 Brush E 1576 53.8 91 Alkali silicate 28 SprayE 1577 97.5 46 Urethane resin 109 Brush E 1578 88.4 47 Alkyl silicate 15Spray E 1579 54.8 47 Alkyl silicate 14 Spray E 1580 45.7 49 Alkylsilicate 18 Spray E

TABLE 82 Percent Diameter of fine- distribution grain (peak metal Mgsolid diameter) of grains Alloy solution phase Any of Zn metal among ZnChemical component grain and Zn—Mg MgZn2, grains/Zn metal content of Znmetal fracture intermetallic Mg2Zn11, alloy grains grains/ grains/Znalloy surfaces compounds Mg2Zn3, Invention (μm) Zn alloy grains or Avepresent on MgZn, Number Example Fine Coarse grains (Mass %) cracksaspect grain Mg7Zn3 of No metal metal (Vol %) Zn Mg Al Si present? ratiosurfaces? present? faces 1581 2.35 9.25 45.02 87.2 12.8 0 0 Yes 1.05 YesYes 6 1582 2.12 9.46 47.02 92.2 7.8 0 0 Yes 1.22 No Yes 7 1583 2.34 9.467.66 70.5 29.5 0 0 Yes 1.13 No Yes 6 1584 2.33 9.46 15.20 91.5 8.5 0 0Yes 1.06 Yes Yes 7 1585 2.23 9.06 43.16 74.5 25.5 0 0 Yes 1.05 Yes Yes 61586 2.12 9.3 49.33 99.93 0.07 0 0 Yes 1.24 Yes Yes 2 1587 2.21 8.6819.47 89.2 10.8 0 0 No 1.05 Yes Yes 7 1588 1.38 8.53 69.55 86 11.2 1.61.2 No 1.12 Yes Yes 6 1589 1.95 9.32 51.41 75.23 24.5 0.27 0 Yes 1.38 NoYes 6 1590 2.26 8.95 75.88 82.6 17.4 0 0 Yes 1.13 No Yes 6 1591 2.0512.54 48.08 98.7 1.3 0 0 Yes 1.33 Yes Yes 2 1592 1.65 8.7 66.85 80.519.5 0 0 Yes 1.27 Yes Yes 6 1593 2.35 8.55 7.68 88.85 10.8 0.05 0.3 No1.23 No Yes 7 1594 1.62 8.91 8.64 87.7 11.9 0.4 0 Yes 1.11 Yes Yes 21595 1.88 9.91 16.58 90.5 9.5 0 0 Yes 1.42 Yes Yes 6 1596 2.35 9.2535.87 89.5 10.5 0 0 Yes 1.06 No Yes 2 1597 2.57 9.56 42.04 84.9 15.1 0 0Yes 1.05 Yes Yes 6 1598 2.56 9.84 38.41 83.2 16.8 0 0 Yes 1.07 Yes Yes 71599 2.21 9.75 6.99 89.4 10.6 0 0 Yes 1.42 No Yes 7 1600 2.64 9.85 44.1284.3 13.3 2.4 0 Yes 1.38 Yes Yes 2 Coating details Ratio of fine metalgrains in coat outermost surface layer 10% Total thickness metal tototal grain Invention fine metal content Coat Example grains of coatthickness Coating No (Mass %) (Mass %) Base resin type (μm) methodCorrosion Test Results 1581 34.7 50 Alkali silicate 2 Spray G 1582 57.987 Alkyl silicate 37 Spray E 1583 65.4 83 Alkali silicate 12 Spray E1584 87.9 48 Alkyl silicate 160 Brush E 1585 2.9 51 Alkali silicate 5Brush G 1586 12.6 51 Alkyl silicate 56 Brush E 1587 53.8 87 Alkalisilicate 2 Spray G 1588 17.8 85 Alkyl silicate 18 Spray E 1589 34.7 86Alkyl silicate 23 Spray E 1590 76.8 50 Epoxy resin 30 Brush E 1591 58.951 Acrylic resin 77 Brush E 1592 50.8 51 Urethane resin 655 Brush E 159346.8 80 Polyester resin 47 Spray E 1594 23.7 46 Epoxy resin 43 Spray E1595 53.8 51 Acrylic resin 52 Brush E 1596 53.8 86 Urethane resin 20Brush E 1597 43.7 85 Polyester resin 200 Brush E 1598 55.9 82 Alkalisilicate 22 Spray E 1599 65.8 81 Alkyl silicate 25 Spray E 1600 55.7 46Alkali silicate 14 Spray E

TABLE 83 Percent Diameter of fine- distribution grain (peak metal Mgsolid diameter) of grains Alloy solution phase Any of Zn metal among ZnChemical component grain and Zn—Mg MgZn2, grains/Zn metal content of Znmetal fracture intermetallic Mg2Zn11, alloy grains grains/ grains/Znalloy surfaces compounds Mg2Zn3, Invention (μm) Zn alloy grains or Avepresent on MgZn, Example Fine Coarse grains (Mass %) cracks aspect grainMg7Zn3 No metal metal (Vol %) Zn Mg Al Si present? ratio surfaces?present? 1601 2.65 8.56 66.99 98.6 1.4 0 0 No 1.22 Yes Yes 1602 2.948.21 43.38 76.45 23.5 0 0.05 Yes 1.14 Yes Yes 1603 2.58 8.33 39.75 91.18.9 0 0 Yes 1.13 Yes Yes 1604 2.37 8 65.38 85.1 14.9 0 0 Yes 1.02 YesYes 1605 2.15 9.22 45.46 77.48 18.4 2.55 1.57 Yes 1.06 Yes Yes 1606 2.969.36 22.55 97.9 2.1 0 0 Yes 1.05 Yes Yes 1607 2.85 9.45 42.13 94.8 5.2 00 Yes 1.24 Yes Yes 1608 2.94 9.61 38.50 84.6 15.4 0 0 Yes 1.33 Yes Yes1609 2.11 9.85 64.13 89.3 10.7 0 0 Yes 1.27 Yes Yes 1610 2.68 9.23 44.2183.3 16.7 0 0 Yes 1.05 Yes Yes 1611 2.99 9.08 39.51 80.05 19.6 0.35 0 No1.12 Yes Yes 1612 1.82 9.87 78.64 85.5 14.5 0 0 No 1.23 Yes Yes 16131.42 9.46 42.05 85 14.2 0 0.8 No 1.36 Yes Yes 1614 2.12 9.28 64.58 87.312.7 0 0 No 1.11 Yes Yes 1615 1.92 9.45 47.76 89.5 10.5 0 0 Yes 1.07 YesYes 1616 2.11 9.63 24.10 87.3 11.8 0 0.9 Yes 1.42 Yes Yes 1617 2.97 9.1639.11 86.4 12.8 0.5 0.3 Yes 1.38 Yes Yes 1618 2.36 10.39 19.65 93.8 6.20 0 Yes 1.22 Yes Yes 1619 3.05 10.56 65.39 83.8 16.2 0 0 Yes 1.14 YesYes 1620 2.15 10.74 48.57 80.4 19.6 0 0 Yes 1.13 Yes Yes Coating detailsRatio of fine metal grains in coat outermost surface layer 10% Totalthickness metal to total grain Invention Number fine metal content CoatExample of grains of coat thickness Coating No faces (Mass %) (Mass %)Base resin type (μm) method Corrosion Test Results 1601 2 64.5 47Urethane resin 112 Spray E 1602 6 68.9 48 Alkali silicate 24 Spray E1603 7 64.7 51 Urethane resin 150 Spray E 1604 6 77.9 53 Alkali silicate18 Spray E 1605 7 43.7 88 Alkyl silicate 19 Brush E 1606 6 7.8 85 Alkylsilicate 24 Spray E 1607 2 16.0 83 Urethane resin 99 Spray E 1608 2 89.682 Alkyl silicate 7 Spray E 1609 6 11.8 83 Epoxy resin 100 Spray E 16107 4.6 47 Alkyl silicate 27 Brush E 1611 6 2.5 51 Alkali silicate 15Spray E 1612 6 18.9 52 Alkyl silicate 14 Spray E 1613 2 75.9 51 Urethaneresin 55 Spray E 1614 7 55.9 52 Alkyl silicate 8 Spray E 1615 2 53.8 89Urethane resin 122 Brush E 1616 2 97.5 85 Alkyl silicate 54 Spray E 16176 88.4 82 Alkali silicate 19 Spray E 1618 7 54.8 87 Alkyl silicate 25Brush E 1619 7 45.7 88 Alkyl silicate 58 Spray E 1620 6 34.7 49 Alkylsilicate 21 Spray E

TABLE 84 Percent Diameter of fine- distribution grain (peak metal Mgsolid diameter) of grains Alloy solution phase Any of Zn metal among ZnChemical component grain and Zn—Mg MgZn2, grains/Zn metal content of Znmetal fracture intermetallic Mg2Zn11, alloy grains grains/ grains/Znalloy surfaces compounds Mg2Zn3, Invention (μm) Zn alloy grains or Avepresent on MgZn, Example Fine Coarse grains (Mass %) cracks aspect grainMg7Zn3 No metal metal (Vol %) Zn Mg Al Si present? ratio surfaces?present? 1621 2.19 10.27 24.91 87.6 12.4 0 0 Yes 1.02 Yes Yes 1622 2.4811.5 39.92 89.3 10.7 0 0 Yes 1.06 Yes Yes 1623 2.85 11.67 22.65 91.5 8.50 0 Yes 1.05 Yes Yes 1624 2.75 11.85 66.20 94.9 5.1 0 0 Yes 1.24 Yes Yes1625 2.46 11.38 49.38 75.5 24.5 0 0 Yes 1.33 Yes Yes 1626 2.71 12.6130.58 86.5 13.5 0 0 Yes 1.27 Yes Yes 1627 2.36 12.78 45.59 80 20 0 0 Yes1.05 Yes Yes 1628 2.16 9.57 28.32 84.5 15.5 0 0 Yes 1.12 Yes Yes 16292.46 9.81 71.87 88 10.5 1.5 0 Yes 1.23 Yes Yes 1630 2.49 8.43 53.05 92.17.9 0 0 Yes 1.36 Yes Yes 1631 2.95 8.55 27.74 95.2 4.8 0 0 Yes 1.11 YesYes 1632 2.36 8.22 42.75 81.6 18.4 0 0 Yes 1.07 Yes Yes 1633 2.21 9.4423.29 86.8 12.7 0 0.5 Yes 1.42 Yes Yes 1634 2.25 9.58 61.12 89.7 10.3 00 No 1.38 Yes Yes 1635 2.44 9.67 44.30 71.2 20.8 8 0 Yes 1.22 Yes Yes1636 2.78 9.83 23.96 97.5 2.5 0 0 No 1.14 Yes Yes 1637 2.15 10.07 44.0984.8 15.2 0 0 Yes 1.13 Yes Yes 1638 2.19 9.45 24.63 80.8 19.2 0 0 No1.02 Yes Yes 1639 2.48 9.3 62.46 78.7 13.5 7.8 0 Yes 1.06 Yes Yes 16402.59 9.99 45.64 88.1 11.9 0 0 No 1.05 Yes Yes Coating details Ratio offine metal grains in coat outermost surface layer 10% Total thicknessmetal to total grain Number fine metal content Coat Invention of grainsof coat thickness Coating Example No faces (Mass %) (Mass %) Base resintype (μm) method Corrosion Test Results 1621 7 57.9 50 Alkali silicate19 Brush E 1622 7 65.4 51 Urethane resin 56 Spray E 1623 6 87.9 52 Alkylsilicate 77 Spray E 1624 7 2.9 53 Alkyl silicate 12 Spray E 1625 2 12.688 Alkyl silicate 64 Spray E 1626 7 53.8 85 Alkyl silicate 34 Brush E1627 7 17.8 83 Alkali silicate 28 Spray E 1628 2 34.7 81 Urethane resin109 Brush E 1629 6 55.7 80 Alkyl silicate 15 Spray E 1630 6 64.5 47Alkyl silicate 14 Spray E 1631 7 68.9 49 Alkyl silicate 18 Spray E 16327 64.7 50 Urethane resin 122 Brush E 1633 6 77.9 51 Alkyl silicate 54Spray E 1634 7 43.7 52 Alkali silicate 19 Spray E 1635 2 7.8 83 Alkylsilicate 25 Brush E 1636 2 16.0 88 Alkyl silicate 58 Spray E 1637 6 89.685 Alkyl silicate 21 Spray E 1638 7 11.8 83 Alkali silicate 19 Brush E1639 6 4.6 82 Urethane resin 56 Spray E 1640 2 2.5 47 Alkyl silicate 77Spray E

TABLE 85 Percent Diameter of fine- distribution grain (peak metal Mgsolid diameter) of grains Alloy solution phase Any of Zn metal among ZnChemical component grain and Zn—Mg MgZn2, grains/Zn metal content of Znmetal fracture intermetallic Mg2Zn11, alloy grains grains/ grains/Znalloy surfaces compounds Mg2Zn3, Invention (μm) Zn alloy grains or Avepresent on MgZn, Example Fine Coarse grains (Mass %) cracks aspect grainMg7Zn3 No metal metal (Vol %) Zn Mg Al Si present? ratio surfaces?present? 1641 2.47 9.58 25.30 88.5 10.6 0 0.9 Yes 1.24 Yes Yes 1642 2.699.4 42.84 84.6 15.4 0 0 Yes 1.33 Yes Yes 1643 2.57 9.57 25.44 97.4 2.6 00 Yes 1.27 Yes Yes 1644 2.49 9.54 63.27 83.3 16.7 0 0 Yes 1.37 Yes Yes1645 2.68 9.58 46.45 91.9 8.1 0 0 Yes 1.10 Yes Yes 1646 2.35 9.25 46.4586.3 13.7 0 0 Yes 1.04 Yes Yes 1647 2.48 10.04 50.91 81.5 18.5 0 0 Yes1.02 Yes Yes 1648 2.13 11.27 27.25 97.6 2.4 0 0 Yes 1.01 Yes Yes 16491.93 11.44 42.26 89.1 10.9 0 0 Yes 1.08 Yes Yes 1650 2.05 8.9 33.69 92.87.2 0 0 Yes 1.14 Yes Yes 1651 1.42 8.75 48.70 81.96 17.5 0.5 0.04 No1.23 Yes Yes 1652 1.46 9.44 29.24 85.4 14.6 0 0 No 1.33 Yes Yes 16531.75 9.03 67.07 90.6 9.4 0 0 Yes 1.37 Yes Yes 1654 1.86 8.85 50.25 92.97.1 0 0 Yes 1.44 Yes Yes 1655 1.74 8.95 29.91 77.5 22.5 0 0 Yes 1.21 YesYes 1656 1.96 12.54 87.50 84.8 13.7 1.5 0 No 1.22 Yes Yes 1657 1.65 8.730.58 87.1 12.9 0 0 No 1.23 Yes Yes 1658 2.35 8.55 68.41 95.7 4.3 0 0Yes 1.47 Yes Yes 1659 1.62 10.72 54.59 80.2 17.6 1 1.2 No 1.01 Yes Yes1660 2.25 9.9 34.25 98.8 0.6 0.6 0 Yes 1.04 Yes Yes Coating detailsRatio of fine metal grains in coat outermost surface layer 10% Totalthickness metal to total grain Invention Number fine metal content CoatExample of grains of coat thickness Coating No faces (Mass %) (Mass %)Base resin type (μm) method Corrosion Test Results 1641 2 18.9 46 Alkylsilicate 54 Spray E 1642 7 75.9 49 Alkali silicate 2 Spray G 1643 6 55.950 Alkali silicate 20 Spray E 1644 7 53.8 51 Alkali silicate 5 Spray G1645 7 97.5 83 Alkyl silicate 20 Spray E 1646 6 88.4 82 Alkali silicate15 Brush E 1647 2 54.8 88 Alkyl silicate 57 Brush E 1648 7 45.7 85Alkali silicate 13 Brush E 1649 2 34.7 86 Alkyl silicate 22 Brush E 16502 57.9 47 Alkali silicate 20 Spray E 1651 7 65.4 48 Alkyl silicate 27Spray E 1652 2 87.9 50 Alkali silicate 15 Spray E 1653 7 2.9 51 Alkylsilicate 35 Spray E 1654 2 12.6 52 Alkali silicate 34 Brush E 1655 653.8 88 Alkyl silicate 45 Brush E 1656 6 17.8 89 Alkali silicate 52Brush E 1657 7 34.7 86 Alkyl silicate 23 Brush E 1658 6 76.8 87 Alkalisilicate 5 Spray E 1659 2 58.9 86 Alkyl silicate 52 Brush E 1660 2 50.846 Alkali silicate 150 Brush E

TABLE 86 Percent Diameter of fine- distribution grain (peak metal Mgsolid diameter) of grains Alloy solution phase Any of Zn metal among ZnChemical component grain and Zn—Mg MgZn2, grains/Zn metal content of Znmetal fracture intermetallic Mg2Zn11, alloy grains grains/ grains/Znalloy surfaces compounds Mg2Zn3, Invention (μm) Zn alloy grains or Avepresent on MgZn, Example Fine Coarse grains (Mass %) cracks aspect grainMg7Zn3 No metal metal (Vol %) Zn Mg Al Si present? ratio surfaces?present? 1661 2.36 9.57 37.61 86.9 10.3 1.6 1.2 Yes 1.05 Yes Yes 16622.24 10.79 45.60 92.98 7 0.02 0 Yes 1.12 Yes Yes 1663 2.46 10.93 46.7075.5 23.5 1 0 Yes 1.11 Yes Yes 1664 1.56 11.02 41.22 82.5 17.5 0 0 No1.08 Yes Yes 1665 1.24 11.18 45.68 80.1 12.4 7.5 0 Yes 1.47 Yes Yes 16661.68 11.42 22.02 85.09 14.9 0 0.01 Yes 1.50 Yes Yes 1667 2.65 10.8 37.0378.7 20.7 0 0.6 No 1.13 Yes Yes 1668 2.22 10.65 28.46 91.29 8.6 0 0.11Yes 1.26 Yes Yes 1669 2.45 11.34 43.47 85.8 14.2 0 0 Yes 1.14 Yes Yes1670 2.23 11.62 35.19 98.12 0.08 0 1.8 Yes 1.49 Yes Yes 1671 2.26 11.1573.02 83.46 15.2 0 1.34 No 1.34 Yes Yes 1672 2.72 12.38 56.20 73.17 17.49 0.43 Yes 1.18 Yes Yes 1673 2.13 12.55 35.86 98.6 0.8 0.6 0 Yes 1.17Yes Yes 1674 1.98 9.34 93.45 93.55 6.4 0.05 0 Yes 1.48 Yes Yes 1675 2.029.58 30.66 96.78 3.2 0.02 0 No 1.49 Yes Yes 1676 2.21 9.88 74.21 83 9.27.8 0 Yes 1.27 Yes Yes 1677 2.55 10 55.39 70.92 19.2 9.88 0 Yes 1.17 YesYes 1678 1.92 10.67 30.08 80.25 15.1 4.65 0 Yes 1.16 Yes Yes 1679 1.9611.89 45.09 81.85 14.5 3.65 0 Yes 1.27 Yes Yes 1680 2.11 12.03 41.4189.45 10.5 0.05 0 Yes 1.27 Yes Yes Coating details Ratio of fine metalgrains in coat outermost surface layer 10% Total thickness metal tototal grain Invention Number fine metal content Coat Example of grainsof coat thickness Coating No faces (Mass %) (Mass %) Base resin type(μm) method Corrosion Test Results 1661 2 46.8 49 Alkyl silicate 60Brush E 1662 2 23.7 35 Alkali silicate 15 Spray E 1663 2 53.8 37 Alkylsilicate 24 Spray E 1664 2 53.8 36 Alkali silicate 34 Spray E 1665 643.7 38 Alkyl silicate 20 Brush E 1666 6 55.9 48 Alkali silicate 200Brush E 1667 7 65.8 46 Alkyl silicate 56 Brush E 1668 6 55.7 51 Alkalisilicate 34 Spray E 1669 2 64.5 46 Alkyl silicate 2 Spray G 1670 7 68.938 Alkali silicate 15 Spray E 1671 2 64.7 48 Alkali silicate 10 Spray E1672 6 77.9 52 Alkyl silicate 125 Brush E 1673 6 43.7 30 Alkali silicate24 Brush E 1674 2 7.8 76 Alkyl silicate 110 Brush E 1675 2 16.0 72Alkali silicate 24 Brush E 1676 7 89.6 81 Alkyl silicate 2 Spray G 16776 11.8 64 Alkali silicate 37 Spray E 1678 7 4.6 69 Alkyl silicate 113Brush E 1679 2 2.5 83 Alkali silicate 2 Spray G 1680 7 18.9 30 Alkylsilicate 75 Brush E

TABLE 87 Percent Diameter of fine- distribution grain (peak metal Mgsolid diameter) of grains Alloy solution phase Any of Zn metal among ZnChemical component grain and Zn—Mg MgZn2, grains/Zn metal content of Znmetal fracture intermetallic Mg2Zn11, alloy grains grains/ grains/Znalloy surfaces compounds Mg2Zn3, Invention (μm) Zn alloy grains or Avepresent on MgZn, Example Fine Coarse grains (Mass %) cracks aspect grainMg7Zn3 No metal metal (Vol %) Zn Mg Al Si present? ratio surfaces?present? 1681 2.97 12.12 17.75 87.3 7.5 5.2 0 Yes 1.49 Yes Yes 1682 2.3612.28 32.76 93.9 6.1 0 0.001 Yes 1.29 Yes Yes 1683 3.05 12.52 30.8982.55 16.8 0.05 0.6 Yes 1.23 Yes Yes 1684 2.57 11.9 45.90 70.7 27.5 10.8 Yes 1.23 Yes Yes 1685 2.65 11.75 42.22 94.6 2.9 0 2.5 Yes 1.23 YesYes 1686 2.54 12.44 18.56 94 4.5 0 1.5 No 1.23 Yes Yes 1687 2.85 12.0333.57 99.43 0.07 0 0.5 Yes 1.27 Yes Yes 1688 2.75 10.61 31.70 96.82 3.10.04 0.04 Yes 1.23 Yes Yes 1689 2.46 11.3 46.71 76.3 20.5 1 2.2 Yes 1.36Yes Yes 1690 2.71 11.58 47.89 68.84 29.5 0.06 1.6 Yes 1.11 Yes Yes 16912.36 11.11 24.23 92.33 7.6 0.07 0 Yes 1.02 Yes Yes 1692 2.16 12.34 39.2495.2 0.7 1.2 2.9 Yes 1.05 Yes Yes 1693 2.46 12.51 37.37 91.8 4.6 1.8 1.8Yes 1.24 Yes Yes 1694 2.49 11.64 50.38 82 8.3 9.2 0.5 Yes 1.33 Yes Yes1695 1.63 9.16 37.14 88.2 11.8 0 0 Yes 1.27 Yes Yes 1696 1.51 9.46 13.4886.06 12.9 0 1.04 Yes 1.50 Yes Yes 1697 3.05 9.54 40.05 99.34 0.6 0 0.06Yes 1.13 Yes Yes 1698 2.57 9.56 38.18 89.51 9.5 0 0.99 No 1.04 Yes Yes1699 2.65 9.46 7.63 88.3 11.7 0 0 Yes 1.02 Yes Yes 1700 2.54 11.99 37.9588.9 9.4 0.7 0 Yes 1.08 Yes Yes Coating details Ratio of fine metalgrains in coat outermost surface layer 10% Total thickness metal tototal grain Invention Number fine metal content Coat Example of grainsof coat thickness Coating No faces (Mass %) (Mass %) Base resin type(μm) method Corrosion Test Results 1681 6 75.9 83 Alkali silicate 30Brush E 1682 7 55.9 75 Alkyl silicate 34 Brush E 1683 6 53.8 76 Epoxyresin 124 Brush E 1684 7 97.5 72 Acrylic resin 15 Spray E 1685 6 88.4 71Urethane resin 23 Spray E 1686 2 54.8 82 Polyester resin 157 Brush E1687 7 45.7 81 Epoxy resin 26 Spray E 1688 6 34.7 83 Acrylic resin 38Spray E 1689 6 57.9 50 Urethane resin 160 Brush E 1690 6 65.4 72Polyester resin 27 Brush E 1691 2 87.9 47 Epoxy resin 180 Brush E 1692 62.9 47 Acrylic resin 26 Spray E 1693 7 12.6 52 Urethane resin 180 BrushE 1694 2 53.8 52 Polyester resin 15 Spray E 1695 6 17.8 50 Epoxy resin 2Spray G 1696 2 34.7 46 Acrylic resin 28 Spray E 1697 6 55.7 47 Urethaneresin 30 Spray E 1698 7 64.5 83 Polyester resin 2 Spray G 1699 7 68.9 52Epoxy resin 157 Brush E 1700 2 64.7 89 Acrylic resin 28 Brush E

TABLE 88 Percent Diameter of fine- distribution grain (peak metal Mgsolid diameter) of grains Alloy solution phase Any of Zn metal among ZnChemical component grain and Zn—Mg MgZn2, grains/Zn metal content of Znmetal fracture intermetallic Mg2Zn11, alloy grains grains/ grains/Znalloy surfaces compounds Mg2Zn3, Invention (μm) Zn alloy grains or Avepresent on MgZn, Example Fine Coarse grains (Mass %) cracks aspect grainMg7Zn3 No metal metal (Vol %) Zn Mg Al Si present? ratio surfaces?present? 1701 2.85 12.08 14.29 87.8 11.7 0.5 0 Yes 1.15 Yes Yes 17022.75 12.24 40.86 95.6 4.2 0.2 0 Yes 1.34 Yes Yes 1703 2.46 12.48 97.5097.13 2.8 0.07 0 Yes 1.25 Yes Yes 1704 2.71 11.86 13.30 86.1 13.9 0 0Yes 1.19 Yes Yes 1705 2.36 11.71 43.62 82.6 14.6 1.6 1.2 No 1.18 Yes Yes1706 2.46 11.35 56.93 72.95 26.4 0.65 0 Yes 1.24 Yes Yes 1707 1.45 12.0236.59 83.23 16.5 0.27 0 Yes 1.11 Yes Yes 1708 2.42 13.24 39.95 79.4 19.50.45 0.65 Yes 1.27 Yes Yes 1709 2.11 9.46 86.50 97.08 1.6 0.33 0.99 Yes1.31 Yes Yes 1710 2.97 13.47 32.87 90.5 6 1 2.5 Yes 1.26 Yes Yes 17112.36 9.46 16.23 88.93 8.4 0.87 1.8 Yes 1.14 Yes Yes 1712 3.05 13.8737.40 86.7 13.3 0 0 Yes 1.34 Yes Yes 1713 2.57 13.25 40.76 81.4 18.6 0.0 Yes 1.16 Yes Yes 1714 2.65 13.1 87.31 97.34 1.8 0.86 0 No 1.47 Yes Yes1715 2.12 9.08 92.50 95.25 4.1 0.65 0 Yes 1.48 Yes Yes 1716 1.65 9.8717.93 82.87 16.7 0.43 0 No 1.49 Yes Yes 1717 2.35 9.46 44.50 99 0.4 0.60 Yes 1.34 Yes Yes 1718 1.63 9.28 96.50 89.35 10.6 0.05 0 Yes 1.29 YesYes 1719 2.64 9.45 16.94 93.08 6.9 0.02 0 Yes 1.18 Yes Yes 1720 2.359.25 88.12 99.82 0.05 0.06 0.07 Yes 1.48 Yes Yes Coating details Ratioof fine metal grains in coat outermost surface layer 10% Total thicknessmetal to total grain Invention Number fine metal content Coat Example ofgrains of coat thickness Coating No faces (Mass %) (Mass %) Base resintype (μm) method Corrosion Test Results 1701 2 77.9 85 Alkyl silicate130 Brush E 1702 6 43.7 53 Alkyl silicate 29 Brush E 1703 7 7.8 88 Epoxyresin 30 Brush E 1704 6 16.0 85 Acrylic resin 120 Brush E 1705 7 89.6 52Urethane resin 187 Brush E 1706 6 11.8 83 Polyester resin 28 Spray E1707 2 4.6 88 Epoxy resin 5 Spray E 1708 2 2.5 49 Acrylic resin 35 SprayE 1709 6 18.9 50 Urethane resin 5 Spray G 1710 7 75.9 51 Polyester resin200 Brush E 1711 6 55.9 83 Alkali silicate 25 Spray E 1712 6 53.8 82Alkali silicate 15 Spray E 1713 2 97.5 88 Alkyl silicate 20 Spray E 17147 88.4 85 Alkali silicate 18 Spray E 1715 2 54.8 87 Alkyl silicate 22Spray E 1716 2 45.7 86 Alkali silicate 19 Spray E 1717 6 34.7 46 Alkylsilicate 29 Spray E 1718 7 57.9 49 Alkali silicate 23 Spray E 1719 765.4 35 Alkyl silicate 21 Spray E 1720 6 87.9 30 Alkali silicate 19Spray E

TABLE 89 Percent Diameter of fine- distribution grain (peak metal Mgsolid diameter) of grains Alloy solution phase Any of Zn metal among ZnChemical component grain and Zn—Mg MgZn2, grains/Zn metal content of Znmetal fracture intermetallic Mg2Zn11, alloy grains grains/ grains/Znalloy surfaces compounds Mg2Zn3, Invention (μm) Zn alloy grains or Avepresent on MgZn, Example Fine Coarse grains (Mass %) cracks aspect grainMg7Zn3 No metal metal (Vol %) Zn Mg Al Si present? ratio surfaces?present? 1721 2.31 9.46 60.57 91.56 6.4 1.05 0.99 Yes 1.27 Yes Yes 17222.62 9.46 39.48 93.36 3.5 2.6 0.54 Yes 1.17 Yes Yes 1723 2.52 9.46 15.8282.13 17.5 0.05 0.32 Yes 1.27 Yes Yes 1724 2.24 13.32 49.57 91.2 3.6 5.20 No 1.27 Yes Yes 1725 0.05 6.54 86.52 94.1 5.9 0 0.001 Yes 1.48 Yes Yes1726 2.42 6.35 90.98 83.2 16.2 0 0.6 No 1.49 Yes Yes 1727 0.11 7.5467.32 76.7 22.5 0 0.8 Yes 1.34 Yes Yes 1728 1.92 8.64 82.33 96.52 3.40.04 0.04 Yes 1.23 Yes Yes 1729 0.46 6.45 73.76 68.3 26.5 3 2.2 Yes 1.23Yes Yes 1730 0.77 6.48 88.77 72.84 25.5 0.06 1.6 Yes 1.23 Yes Yes 17312.35 9.25 45.02 87.2 12.8 0 0 Yes 1.05 Yes Yes 1732 2.33 9.46 15.2 91.58.5 0 0 Yes 1.06 Yes Yes 1733 1.95 9.32 51.41 75.23 24.5 0.27 0 Yes 1.38Yes Yes 1734 2.15 9.22 45.46 77.48 18.4 2.55 1.57 Yes 1.06 Yes Yes 17352.23 11.62 35.19 72.62 0.08 25.5 1.8 Yes 1.49 Yes Yes 1736 2.26 11.1573.02 64.06 15.2 19.4 1.34 No 1.34 Yes Yes 1737 1.98 9.34 93.45 83 6.410.6 0 Yes 1.48 Yes Yes 1738 2.02 9.58 30.66 86.4 3.2 10.4 0 No 1.49 YesYes 1739 2.36 12.28 32.76 80.4 6.1 13.5 0.001 Yes 1.29 Yes Yes 1740 3.0512.52 30.89 70.1 16.8 12.5 0.6 Yes 1.23 Yes Yes 1741 2.57 11.9 45.9060.9 27.5 10.8 0.8 Yes 1.23 Yes Yes Coating details Ratio of fine metalgrains in coat outermost surface layer 10% Total thickness metal tototal grain Invention Number fine metal content Coat Example of grainsof coat thickness Coating No faces (Mass %) (Mass %) Base resin type(μm) method Corrosion Test Results 1721 7 2.9 76 Alkyl silicate 15 SprayE 1722 7 12.6 72 Alkali silicate 18 Spray E 1723 6 53.8 30 Alkylsilicate 22 Spray E 1724 7 17.8 83 Alkyl silicate 21 Spray E 1725 2 34.775 Alkyl silicate 29 Spray E 1726 7 76.8 76 Alkali silicate 23 Spray E1727 7 58.9 72 Alkyl silicate 21 Spray E 1728 2 50.8 83 Alkali silicate19 Spray E 1729 6 46.8 50 Alkyl silicate 21 Spray E 1730 6 23.7 72Alkali silicate 19 Spray E 1731 2 87.9 50 Acrylic resin 654 Spray E 17326 2.9 48 Alkali silicate 700 Spray E 1733 7 12.6 75 Alkyl silicate 555Spray E 1734 7 53.8 55 Alkyl silicate 321 Spray E 1735 6 17.8 38 Alkylsilicate 152 Brush E 1736 7 34.7 48 Urethane resin 674 Spray E 1737 776.8 76 Polyester resin 325 Spray E 1738 6 58.9 72 Alkyl silicate 665Spray E 1739 7 50.8 75 Alkyl silicate 354 Brush E 1740 6 46.8 76 Alkylsilicate 165 Spray E 1741 7 23.7 72 Urethane resin 354 Spray E

TABLE 90 Percent Diameter of fine- distribution grain (Ave metal Mgsolid diameter) of grains Alloy solution phase Any of Zn metal among ZnChemical component grain and Zn—Mg MgZn2, grains/Zn metal content of Znmetal fracture intermetallic Mg2Zn11, alloy grains grains/ grains/Znalloy surfaces compounds Mg2Zn3, Invention (μm) Zn alloy grains or Avepresent on MgZn, Example Fine Coarse grains (Mass %) cracks aspect grainMg7Zn3 No metal metal (Vol %) Zn Mg Al Si present? ratio surfaces?present? 1742 2.35 9.25 35.87 88.8 11.2 0 0 Yes 1.12 Yes Yes 1743 2.579.56 42.04 90.6 9.4 0 0 No 1.38 Yes Yes 1744 2.56 9.84 6.55 81.45 18.5 00.05 Yes 1.22 Yes Yes 1745 2.21 9.75 43.60 99.97 0.03 0 0 Yes 1.14 YesYes 1746 2.64 9.85 44.12 98.4 1.6 0 0 No 1.02 Yes Yes 1747 1.99 8.5637.21 93.2 6.8 0 0 Yes 1.05 Yes Yes 1748 2.94 8.21 43.38 84.5 13.9 0 1.6No 1.36 No Yes 1749 2.58 8.33 13.52 98.1 1.9 0 0 Yes 1.11 No Yes 17502.37 8 44.94 94.3 5.7 0 0 No 1.07 Yes Yes 1751 2.15 9.22 45.46 90.8 9.20 0 No 1.42 Yes Yes 1752 2.96 9.36 35.96 83.3 15.4 0 1.3 Yes 1.38 No Yes1753 2.85 9.45 42.13 79.84 18.6 0 1.56 Yes 1.22 No Yes 1754 2.94 9.617.56 96.4 3.6 0 0 Yes 1.14 Yes Yes 1755 2.11 9.85 43.69 94.6 5.4 0 0 Yes1.13 Yes Yes 1756 2.68 9.23 44.21 92.4 7.6 0 0 Yes 1.02 No Yes 1757 2.999.08 39.51 75.5 24.5 0 0 Yes 1.06 Yes Yes 1758 2.78 9.87 45.68 82.4 17.60 0 Yes 1.05 Yes Yes 1759 2.96 9.46 65.58 98.6 1.4 0 0 Yes 1.24 No Yes1760 2.85 9.28 47.24 78.5 21.5 0 0 Yes 1.33 No Yes 1761 2.64 9.45 47.7689.6 10.4 0 0 Yes 1.27 Yes Yes Coating details Ratio of fine metalgrains in coat outermost surface layer 10% Total thickness metal tototal grain Invention Number fine metal content Coat Example of grainsof coat thickness Coating No faces (Mass %) (Mass %) Base resin type(μm) method Corrosion Test Results 1742 2 55.7 49 Alkyl silicate 14Spray E 1743 2 64.5 89 Urethane resin 55 Spray E 1744 2 68.9 90 Alkylsilicate 8 Spray E 1745 2 64.7 86 Urethane resin 122 Brush E 1746 6 77.948 Alkyl silicate 555 Spray E 1747 6 43.7 47 Alkali silicate 19 Spray E1748 7 7.8 47 Alkyl silicate 25 Brush E 1749 6 16.0 47 Alkyl silicate 58Spray E 1750 2 89.6 52 Alkyl silicate 685 Spray E 1751 7 11.8 52 Alkalisilicate 19 Brush E 1752 2 4.6 52 Urethane resin 700 Spray E 1753 6 2.588 Alkyl silicate 77 Spray E 1754 6 18.9 87 Alkyl silicate 54 Spray E1755 2 75.9 89 Alkyl silicate 64 Spray E 1756 2 55.9 90 Alkyl silicate34 Brush E 1757 7 53.8 91 Alkali silicate 28 Spray E 1758 6 97.5 46Urethane resin 109 Brush E 1759 7 88.4 47 Alkyl silicate 15 Spray E 17602 54.8 47 Alkyl silicate 14 Spray E 1761 7 45.7 49 Alkyl silicate 18Spray E

TABLE 91 Percent Diameter of fine- distribution grain (Ave metal Mgsolid diameter) of grains Alloy solution phase Any of Zn metal among ZnChemical component grain and Zn—Mg MgZn2, grains/Zn metal content of Znmetal fracture intermetallic Mg2Zn11, alloy grains grains/ grains/Znalloy surfaces compounds Mg2Zn3, Invention (μm) Zn alloy grains or Avepresent on MgZn, Example Fine Coarse grains (Mass %) cracks aspect grainMg7Zn3 No metal metal (Vol %) Zn Mg Al Si present? ratio surfaces?present? 1762 2.35 9.25 45.02 87.2 12.8 0 0 Yes 1.05 Yes Yes 1763 2.129.46 47.02 92.2 7.8 0 0 Yes 1.22 No Yes 1764 2.34 9.46 7.66 70.5 29.5 00 Yes 1.13 No Yes 1765 2.33 9.46 15.20 91.5 8.5 0 0 Yes 1.06 Yes Yes1766 2.23 9.06 43.16 74.5 25.5 0 0 Yes 1.05 Yes Yes 1767 2.12 9.3 49.3399.93 0.07 0 0 Yes 1.24 Yes Yes 1768 2.21 8.68 19.47 89.2 10.8 0 0 No1.05 Yes Yes 1769 1.38 8.53 69.55 86 11.2 1.6 1.2 No 1.12 Yes Yes 17701.95 9.32 51.41 75.23 24.5 0.27 0 Yes 1.38 No Yes 1771 2.26 8.95 75.8882.6 17.4 0 0 Yes 1.13 No Yes 1772 2.05 12.54 48.08 98.7 1.3 0 0 Yes1.33 Yes Yes 1773 1.65 8.7 66.85 80.5 19.5 0 0 Yes 1.27 Yes Yes 17742.35 8.55 7.68 88.85 10.8 0.05 0.3 No 1.23 No Yes 1775 1.62 8.91 8.6487.7 11.9 0.4 0 Yes 1.11 Yes Yes 1776 1.88 9.91 16.58 90.5 9.5 0 0 Yes1.42 Yes Yes 1777 2.35 9.25 35.87 89.5 10.5 0 0 Yes 1.06 No Yes 17782.57 9.56 42.04 84.9 15.1 0 0 Yes 1.05 Yes Yes 1779 2.56 9.84 38.41 83.216.8 0 0 Yes 1.07 Yes Yes 1780 2.21 9.75 6.99 89.4 10.6 0 0 Yes 1.42 NoYes 1781 2.64 9.85 44.12 84.3 13.3 2.4 0 Yes 1.38 Yes Yes Coatingdetails Ratio of fine metal grains in coat outermost surface layer 10%Total thickness metal to total grain Invention Number fine metal contentCoat Example of grains of coat thickness Coating No faces (Mass %) (Mass%) Base resin type (μm) method Corrosion Test Results 1762 6 34.7 50Alkali silicate 2 Spray G 1763 7 57.9 87 Alkyl silicate 37 Spray E 17646 65.4 83 Alkali silicate 12 Spray E 1765 7 87.9 48 Alkyl silicate 160Brush E 1766 6 2.9 51 Alkali silicate 5 Brush G 1767 2 12.6 51 Alkylsilicate 56 Brush E 1768 7 53.8 87 Alkali silicate 2 Spray G 1769 6 17.885 Alkyl silicate 18 Spray E 1770 6 34.7 86 Alkyl silicate 23 Spray E1771 6 76.8 50 Epoxy resin 30 Brush E 1772 2 58.9 51 Acrylic resin 77Brush E 1773 6 50.8 51 Urethane resin 655 Brush E 1774 7 46.8 80Polyester resin 47 Spray E 1775 2 23.7 46 Epoxy resin 43 Spray E 1776 653.8 51 Acrylic resin 52 Brush E 1777 2 53.8 86 Urethane resin 20 BrushE 1778 6 43.7 85 Polyester resin 200 Brush E 1779 7 55.9 82 Alkalisilicate 22 Spray E 1780 7 65.8 81 Alkyl silicate 25 Spray E 1781 2 55.746 Alkali silicate 14 Spray E

TABLE 92 Percent Diameter of fine- distribution grain (Ave metal Mgsolid diameter) of grains Alloy solution phase Any of Zn metal among ZnChemical component grain and Zn—Mg MgZn2, grains/Zn metal content of Znmetal fracture intermetallic Mg2Zn11, alloy grains grains/ grains/Znalloy surfaces compounds Mg2Zn3, Invention (μm) Zn alloy grains or Avepresent on MgZn, Example Fine Coarse grains (Mass %) cracks aspect grainMg7Zn3 No metal metal (Vol %) Zn Mg Al Si present? ratio surfaces?present? 1782 2.65 8.56 66.99 98.6 1.4 0 0 No 1.22 Yes Yes 1783 2.948.21 43.38 76.45 23.5 0 0.05 Yes 1.14 Yes Yes 1784 2.58 8.33 39.75 91.18.9 0 0 Yes 1.13 Yes Yes 1785 2.37 8 65.38 85.1 14.9 0 0 Yes 1.02 YesYes 1786 2.15 9.22 45.46 77.48 18.4 2.55 1.57 Yes 1.06 Yes Yes 1787 2.969.36 22.55 97.9 2.1 0 0 Yes 1.05 Yes Yes 1788 2.85 9.45 42.13 94.8 5.2 00 Yes 1.24 Yes Yes 1789 2.94 9.61 38.50 84.6 15.4 0 0 Yes 1.33 Yes Yes1790 2.11 9.85 64.13 89.3 10.7 0 0 Yes 1.27 Yes Yes 1791 2.68 9.23 44.2183.3 16.7 0 0 Yes 1.05 Yes Yes 1792 2.99 9.08 39.51 80.05 19.6 0.35 0 No1.12 Yes Yes 1793 1.82 9.87 78.64 85.5 14.5 0 0 No 1.23 Yes Yes 17941.42 9.46 42.05 85 14.2 0 0.8 No 1.36 Yes Yes 1795 2.12 9.28 64.58 87.312.7 0 0 No 1.11 Yes Yes 1796 1.92 9.45 47.76 89.5 10.5 0 0 Yes 1.07 YesYes 1797 2.11 9.63 24.10 87.3 11.8 0 0.9 Yes 1.42 Yes Yes 1798 2.97 9.1639.11 86.4 12.8 0.5 0.3 Yes 1.38 Yes Yes 1799 2.36 10.39 19.65 93.8 6.20 0 Yes 1.22 Yes Yes 1800 3.05 10.56 65.39 83.8 16.2 0 0 Yes 1.14 YesYes 1801 2.15 10.74 48.57 80.4 19.6 0 0 Yes 1.13 Yes Yes Coating detailsRatio of fine metal grains in coat outermost surface layer 10% Totalthickness metal to total grain Invention Number fine metal content CoatExample of grains of coat thickness Coating No faces (Mass %) (Mass %)Base resin type (μm) method Corrosion Test Results 1782 2 64.5 47Urethane resin 112 Spray E 1783 6 68.9 48 Alkali silicate 24 Spray E1784 7 64.7 51 Urethane resin 150 Spray E 1785 6 77.9 53 Alkali silicate18 Spray E 1786 7 43.7 88 Alkyl silicate 19 Brush E 1787 6 7.8 85 Alkylsilicate 24 Spray E 1788 2 16.0 83 Urethane resin 99 Spray E 1789 2 89.682 Alkyl silicate 7 Spray E 1790 6 11.8 83 Epoxy resin 100 Spray E 17917 4.6 47 Alkyl silicate 27 Brush E 1792 6 2.5 51 Alkali silicate 15Spray E 1793 6 18.9 52 Alkyl silicate 14 Spray E 1794 2 75.9 51 Urethaneresin 55 Spray E 1795 7 55.9 52 Alkyl silicate 8 Spray E 1796 2 53.8 89Urethane resin 122 Brush E 1797 2 97.5 85 Alkyl silicate 54 Spray E 17986 88.4 82 Alkali silicate 19 Spray E 1799 7 54.8 87 Alkyl silicate 25Brush E 1800 7 45.7 88 Alkyl silicate 58 Spray E 1801 6 34.7 49 Alkylsilicate 21 Spray E

TABLE 93 Percent Diameter of fine- distribution grain (Ave metal Mgsolid diameter) of grains Alloy solution phase Any of Zn metal among ZnChemical component grain and Zn—Mg MgZn2, grains/Zn metal content of Znmetal fracture intermetallic Mg2Zn11, alloy grains grains/ grains/Znalloy surfaces compounds Mg2Zn3, Invention (μm) Zn alloy grains or Avepresent on MgZn, Example Fine Coarse grains (Mass %) cracks aspect grainMg7Zn3 No metal metal (Vol %) Zn Mg Al Si present? ratio surfaces?present? 1802 2.19 10.27 24.91 87.6 12.4 0 0 Yes 1.02 Yes Yes 1803 2.4811.5 39.92 89.3 10.7 0 0 Yes 1.06 Yes Yes 1804 2.85 11.67 22.65 91.5 8.50 0 Yes 1.05 Yes Yes 1805 2.75 11.85 66.20 94.9 5.1 0 0 Yes 1.24 Yes Yes1806 2.46 11.38 49.38 75.5 24.5 0 0 Yes 1.33 Yes Yes 1807 2.71 12.6130.58 86.5 13.5 0 0 Yes 1.27 Yes Yes 1808 2.36 12.78 45.59 80 20 0 0 Yes1.05 Yes Yes 1809 2.16 9.57 28.32 84.5 15.5 0 0 Yes 1.12 Yes Yes 18102.46 9.81 71.87 88 10.5 1.5 0 Yes 1.23 Yes Yes 1811 2.49 8.43 53.05 92.17.9 0 0 Yes 1.36 Yes Yes 1812 2.95 8.55 27.74 95.2 4.8 0 0 Yes 1.11 YesYes 1813 2.36 8.22 42.75 81.6 18.4 0 0 Yes 1.07 Yes Yes 1814 2.21 9.4423.29 86.8 12.7 0 0.5 Yes 1.42 Yes Yes 1815 2.25 9.58 61.12 89.7 10.3 00 No 1.38 Yes Yes 1816 2.44 9.67 44.30 71.2 20.8 8 0 Yes 1.22 Yes Yes1817 2.78 9.83 23.96 97.5 2.5 0 0 No 1.14 Yes Yes 1818 2.15 10.07 44.0984.8 15.2 0 0 Yes 1.13 Yes Yes 1819 2.19 9.45 24.63 80.8 19.2 0 0 No1.02 Yes Yes 1820 2.48 9.3 62.46 78.7 13.5 7.8 0 Yes 1.06 Yes Yes 18212.59 9.99 45.64 88.1 11.9 0 0 No 1.05 Yes Yes Coating details Ratio offine metal grains in coat outermost surface layer 10% Total thicknessmetal to total grain Number fine metal content Coat Invention of grainsof coat thickness Coating Example No faces (Mass %) (Mass %) Base resintype (μm) method Corrosion Test Results 1802 7 57.9 50 Alkali silicate19 Brush E 1803 7 65.4 51 Urethane resin 56 Spray E 1804 6 87.9 52 Alkylsilicate 77 Spray E 1805 7 2.9 53 Alkyl silicate 12 Spray E 1806 2 12.888 Alkyl silicate 64 Spray E 1807 7 53.8 85 Alkyl silicate 34 Brush E1808 7 17.8 83 Alkali silicate 28 Spray E 1809 2 34.7 81 Urethane resin109 Brush E 1810 6 55.7 80 Alkyl silicate 15 Spray E 1811 6 64.5 47Alkyl silicate 14 Spray E 1812 7 68.9 49 Alkyl silicate 18 Spray E 18137 64.7 50 Urethane resin 122 Brush E 1814 6 77.9 51 Alkyl silicate 54Spray E 1815 7 43.7 52 Alkali silicate 19 Spray E 1816 2 7.8 83 Alkylsilicate 25 Brush E 1817 2 16.0 88 Alkyl silicate 58 Spray E 1818 6 89.685 Alkyl silicate 21 Spray E 1819 7 11.8 83 Alkali silicate 19 Brush E1820 6 4.6 82 Urethane resin 56 Spray E 1821 2 2.5 47 Alkyl silicate 77Spray E

TABLE 94 Percent Diameter of fine- distribution grain (Ave metal Mgsolid diameter) of grains Alloy solution phase Any of Zn metal among ZnChemical component grain and Zn—Mg MgZn2, grains/Zn metal content of Znmetal fracture intermetallic Mg2Zn11, alloy grains grains/ grains/Znalloy surfaces compounds Mg2Zn3, Invention (μm) Zn alloy grains or Avepresent on MgZn, Example Fine Coarse grains (Mass %) cracks aspect grainMg7Zn3 No metal metal (Vol %) Zn Mg Al Si present? ratio surfaces?present? 1822 2.47 9.58 25.30 88.5 10.6 0 0.9 Yes 1.24 Yes Yes 1823 2.699.4 42.84 84.6 15.4 0 0 Yes 1.33 Yes Yes 1824 2.57 9.57 25.44 97.4 2.6 00 Yes 1.27 Yes Yes 1825 2.49 9.54 63.27 83.3 16.7 0 0 Yes 1.37 Yes Yes1826 2.68 9.58 46.45 91.9 8.1 0 0 Yes 1.10 Yes Yes 1827 2.35 9.25 46.4586.3 13.7 0 0 Yes 1.04 Yes Yes 1828 2.48 10.04 50.91 81.5 18.5 0 0 Yes1.02 Yes Yes 1829 2.13 11.27 27.25 97.6 2.4 0 0 Yes 1.01 Yes Yes 18301.93 11.44 42.26 89.1 10.9 0 0 Yes 1.08 Yes Yes 1831 2.05 8.9 33.69 92.87.2 0 0 Yes 1.14 Yes Yes 1832 1.42 8.75 48.70 81.96 17.5 0.5 0.04 No1.23 Yes Yes 1833 1.46 9.44 29.24 85.4 14.6 0 0 No 1.33 Yes Yes 18341.75 9.03 67.07 90.6 9.4 0 0 Yes 1.37 Yes Yes 1835 1.86 8.85 50.25 92.97.1 0 0 Yes 1.44 Yes Yes 1836 1.74 8.95 29.91 77.5 22.5 0 0 Yes 1.21 YesYes 1837 1.96 12.54 87.50 84.8 13.7 1.5 0 No 1.22 Yes Yes 1838 1.65 8.730.58 87.1 12.9 0 0 No 1.23 Yes Yes 1839 2.35 8.55 68.41 95.7 4.3 0 0Yes 1.47 Yes Yes 1840 1.62 10.72 54.59 80.2 17.6 1 1.2 No 1.01 Yes Yes1841 2.25 9.9 34.25 98.8 0.6 0.6 0 Yes 1.04 Yes Yes Coating detailsRatio of fine metal grains in coat outermost surface layer 10% Totalthickness metal to total grain Invention Number fine metal content CoatExample of grains of coat thickness Coating No faces (Mass %) (Mass %)Base resin type (μm) method Corrosion Test Results 1822 2 18.9 46 Alkylsilicate 54 Spray E 1823 7 75.9 49 Alkali silicate 2 Spray G 1824 6 55.950 Alkali silicate 20 Spray E 1825 7 53.8 51 Alkali silicate 5 Spray G1826 7 97.5 83 Alkyl silicate 20 Spray E 1827 6 88.4 82 Alkali silicate15 Brush E 1828 2 54.8 88 Alkyl silicate 57 Brush E 1829 7 45.7 85Alkali silicate 13 Brush E 1830 2 34.7 86 Alkyl silicate 22 Brush E 18312 57.9 47 Alkali silicate 20 Spray E 1832 7 65.4 48 Alkyl silicate 27Spray E 1833 2 87.9 50 Alkali silicate 15 Spray E 1834 7 2.9 51 Alkylsilicate 35 Spray E 1835 2 12.6 52 Alkali silicate 34 Brush E 1836 653.8 88 Alkyl silicate 45 Brush E 1837 6 17.8 89 Alkali silicate 52Brush E 1838 7 34.7 86 Alkyl silicate 23 Brush E 1839 6 76.8 87 Alkalisilicate 5 Spray E 1840 2 58.9 86 Alkyl silicate 52 Brush E 1841 2 50.846 Alkali silicate 150 Brush E

TABLE 95 Percent Diameter of fine- distribution grain (Ave metal Mgsolid diameter) of grains Alloy solution phase Any of Zn metal among ZnChemical component grain and Zn—Mg MgZn2, grains/Zn metal content of Znmetal fracture intermetallic Mg2Zn11, alloy grains grains/ grains/Znalloy surfaces compounds Mg2Zn3, Invention (μm) Zn alloy grains or Avepresent on MgZn, Example Fine Coarse grains (Mass %) cracks aspect grainMg7Zn3 No metal metal (Vol %) Zn Mg Al Si present? ratio surfaces?present? 1842 2.36 9.57 37.61 86.9 10.3 1.6 1.2 Yes 1.05 Yes Yes 18432.24 10.79 45.60 92.98 7 0.02 0 Yes 1.12 Yes Yes 1844 2.46 10.93 46.7075.5 23.5 1 0 Yes 1.11 Yes Yes 1845 1.56 11.02 41.22 82.5 17.5 0 0 No1.08 Yes Yes 1846 1.24 11.18 45.68 80.1 12.4 7.5 0 Yes 1.47 Yes Yes 18471.68 11.42 22.02 85.09 14.9 0 0.01 Yes 1.50 Yes Yes 1848 2.65 10.8 37.0378.7 20.7 0 0.6 No 1.13 Yes Yes 1849 2.22 10.65 28.46 91.29 8.6 0 0.11Yes 1.26 Yes Yes 1850 2.45 11.34 43.47 85.8 14.2 0 0 Yes 1.14 Yes Yes1851 2.23 11.62 35.19 98.12 0.08 0 1.8 Yes 1.49 Yes Yes 1852 2.26 11.1573.02 83.46 15.2 0 1.34 No 1.34 Yes Yes 1853 2.72 12.38 56.20 73.17 17.49 0.43 Yes 1.18 Yes Yes 1854 2.13 12.55 35.86 98.6 0.8 0.6 0 Yes 1.17Yes Yes 1855 1.98 9.34 93.45 93.55 6.4 0.05 0 Yes 1.48 Yes Yes 1856 2.029.58 30.66 96.78 3.2 0.02 0 No 1.49 Yes Yes 1857 2.21 9.88 74.21 83 9.27.8 0 Yes 1.27 Yes Yes 1858 2.55 10 55.39 70.92 19.2 9.88 0 Yes 1.17 YesYes 1859 1.92 10.67 30.08 80.25 15.1 4.65 0 Yes 1.16 Yes Yes 1860 1.9611.89 45.09 81.85 14.5 3.65 0 Yes 1.27 Yes Yes 1861 2.11 12.03 41.4189.45 10.5 0.05 0 Yes 1.27 Yes Yes Coating details Ratio of fine metalgrains in coat outermost surface layer 10% Total thickness metal tototal grain Invention Number fine metal content Coat Example of grainsof coat thickness Coating No faces (Mass %) (Mass %) Base resin type(μm) method Corrosion Test Results 1842 2 46.8 49 Alkyl silicate 60Brush E 1843 2 23.7 35 Alkali silicate 15 Spray E 1844 2 53.8 37 Alkylsilicate 24 Spray E 1845 2 53.8 36 Alkali silicate 34 Spray E 1846 643.7 38 Alkyl silicate 20 Brush E 1847 6 55.9 48 Alkali silicate 200Brush E 1848 7 65.8 46 Alkyl silicate 56 Brush E 1849 6 55.7 51 Alkalisilicate 34 Spray E 1850 2 64.5 46 Alkyl silicate 2 Spray G 1851 7 68.938 Alkali silicate 15 Spray E 1852 2 64.7 48 Alkali silicate 10 Spray E1853 6 77.9 52 Alkyl silicate 125 Brush E 1854 6 43.7 30 Alkali silicate24 Brush E 1855 2 7.8 76 Alkyl silicate 110 Brush E 1856 2 16.0 72Alkali silicate 24 Brush E 1857 7 89.6 81 Alkyl silicate 2 Spray G 18586 11.8 64 Alkali silicate 37 Spray E 1859 7 4.6 69 Alkyl silicate 113Brush E 1860 2 2.5 83 Alkali silicate 2 Spray G 1861 7 18.9 30 Alkylsilicate 75 Brush E

TABLE 96 Percent Diameter of fine- distribution grain (Ave metal Mgsolid diameter) of grains Alloy solution phase Any of Zn metal among ZnChemical component grain and Zn—Mg MgZn2, grains/Zn metal content of Znmetal fracture intermetallic Mg2Zn11, alloy grains grains/ grains/Znalloy surfaces compounds Mg2Zn3, Invention (μm) Zn alloy grains or Avepresent on MgZn, Example Fine Coarse grains (Mass %) cracks aspect grainMg7Zn3 No metal metal (Vol %) Zn Mg Al Si present? ratio surfaces?present? 1862 2.97 12.12 17.75 87.3 7.5 5.2 0 Yes 1.49 Yes Yes 1863 2.3612.28 32.76 93.9 6.1 0 0.001 Yes 1.29 Yes Yes 1864 3.05 12.52 30.8982.55 16.8 0.05 0.6 Yes 1.23 Yes Yes 1865 2.57 11.9 45.90 70.7 27.5 10.8 Yes 1.23 Yes Yes 1866 2.65 11.75 42.22 94.6 2.9 0 2.5 Yes 1.23 YesYes 1867 2.54 12.44 18.56 94 4.5 0 1.5 No 1.23 Yes Yes 1868 2.85 12.0333.57 99.43 0.07 0 0.5 Yes 1.27 Yes Yes 1869 2.75 10.61 31.70 96.82 3.10.04 0.04 Yes 1.23 Yes Yes 1870 2.46 11.3 46.71 76.3 20.5 1 2.2 Yes 1.36Yes Yes 1871 2.71 11.58 47.89 68.84 29.5 0.06 1.6 Yes 1.11 Yes Yes 18722.36 11.11 24.23 92.33 7.6 0.07 0 Yes 1.02 Yes Yes 1873 2.16 12.34 39.2495.2 0.7 1.2 2.9 Yes 1.05 Yes Yes 1874 2.46 12.51 37.37 91.8 4.6 1.8 1.8Yes 1.24 Yes Yes 1875 2.49 11.64 50.38 82 8.3 9.2 0.5 Yes 1.33 Yes Yes1876 1.63 9.16 37.14 88.2 11.8 0 0 Yes 1.27 Yes Yes 1877 1.51 9.46 13.4886.06 12.9 0 1.04 Yes 1.50 Yes Yes 1878 3.05 9.54 40.05 99.34 0.6 0 0.06Yes 1.13 Yes Yes 1879 2.57 9.56 38.18 89.51 9.5 0 0.99 No 1.04 Yes Yes1880 2.65 9.46 7.63 88.3 11.7 0 0 Yes 1.02 Yes Yes 1881 2.54 11.99 37.9589.9 9.4 0.7 0 Yes 1.08 Yes Yes Coating details Ratio of fine metalgrains in coat outermost surface layer 10% Total thickness metal tototal grain Invention Number fine metal content Coat Example of grainsof coat thickness Coating No faces (Mass %) (Mass %) Base resin type(μm) method Corrosion Test Results 1862 6 75.9 83 Alkali silicate 30Brush E 1863 7 55.9 75 Alkyl silicate 34 Brush E 1864 6 53.8 76 Epoxyresin 124 Brush E 1865 7 97.5 72 Acrylic resin 15 Spray E 1866 6 88.4 71Urethane resin 23 Spray E 1867 2 54.8 82 Polyester resin 157 Brush E1868 7 45.7 81 Epoxy resin 26 Spray E 1869 6 34.7 83 Acrylic resin 38Spray E 1870 6 57.9 50 Urethane resin 160 Brush E 1871 6 65.4 72Polyester resin 27 Brush E 1872 2 87.9 47 Epoxy resin 180 Brush E 1873 62.9 47 Acrylic resin 26 Spray E 1874 7 12.6 52 Urethane resin 180 BrushE 1875 2 53.8 52 Polyester resin 15 Spray E 1876 6 17.8 50 Epoxy resin 2Spray G 1877 2 34.7 46 Acrylic resin 28 Spray E 1878 6 55.7 47 Urethaneresin 30 Spray E 1879 7 64.5 83 Polyester resin 2 Spray G 1880 7 68.9 52Epoxy resin 157 Brush E 1881 2 64.7 89 Acrylic resin 28 Brush E

TABLE 97 Percent Diameter of fine- distribution grain (Ave metal Mgsolid diameter) of grains Alloy solution phase Any of Zn metal among ZnChemical component grain and Zn—Mg MgZn2, grains/Zn metal content of Znmetal fracture intermetallic Mg2Zn11, alloy grains grains/ grains/Znalloy surfaces compounds Mg2Zn3, Invention (μm) Zn alloy grains or Avepresent on MgZn, Example Fine Coarse grains (Mass %) cracks aspect grainMg7Zn3 No metal metal (Vol %) Zn Mg Al Si present? ratio surfaces?present? 1882 2.85 12.08 14.29 87.8 11.7 0.5 0 Yes 1.15 Yes Yes 18832.75 12.24 40.86 95.6 4.2 0.2 0 Yes 1.34 Yes Yes 1884 2.46 12.48 97.5097.13 2.8 0.07 0 Yes 1.25 Yes Yes 1885 2.71 11.86 13.30 86.1 13.9 0 0Yes 1.19 Yes Yes 1886 2.36 11.71 43.62 82.6 14.6 1.6 1.2 No 1.18 Yes Yes1887 2.46 11.35 56.93 72.95 26.4 0.65 0 Yes 1.24 Yes Yes 1888 1.45 12.0236.59 83.23 16.5 0.27 0 Yes 1.11 Yes Yes 1889 2.42 13.24 39.95 79.4 19.50.45 0.65 Yes 1.27 Yes Yes 1890 2.11 9.46 86.50 97.08 1.6 0.33 0.99 Yes1.31 Yes Yes 1891 2.97 13.47 32.87 90.5 6 1 2.5 Yes 1.26 Yes Yes 18922.36 9.46 16.23 88.93 8.4 0.87 1.8 Yes 1.14 Yes Yes 1893 3.05 13.8737.40 86.7 13.3 0 0 Yes 1.34 Yes Yes 1894 2.57 13.25 40.76 81.4 18.6 0.0 Yes 1.16 Yes Yes 1895 2.65 13.1 87.31 97.34 1.8 0.86 0 No 1.47 Yes Yes1896 2.12 9.08 92.50 95.25 4.1 0.65 0 Yes 1.48 Yes Yes 1897 1.65 9.8717.93 82.87 16.7 0.43 0 No 1.49 Yes Yes 1898 2.35 9.46 44.50 99 0.4 0.60 Yes 1.34 Yes Yes 1899 1.63 9.28 96.50 89.35 10.6 0.05 0 Yes 1.29 YesYes 1900 2.64 9.45 16.94 93.08 6.9 0.02 0 Yes 1.18 Yes Yes 1901 2.359.25 88.12 99.82 0.05 0.06 0.07 Yes 1.48 Yes Yes Coating details Ratioof fine metal grains in coat outermost surface layer 10% Total thicknessmetal to total grain Invention Number fine metal content Coat Example ofgrains of coat thickness Coating No faces (Mass %) (Mass %) Base resintype (μm) method Corrosion Test Results 1882 2 77.9 85 Alkyl silicate130 Brush E 1883 6 43.7 53 Alkyl silicate 29 Brush E 1884 7 7.8 88 Epoxyresin 30 Brush E 1885 6 16.0 85 Acrylic resin 120 Brush E 1886 7 89.6 52Urethane resin 187 Brush E 1887 6 11.8 83 Polyester resin 28 Spray E1888 2 4.6 88 Epoxy resin 5 Spray E 1889 2 2.5 49 Acrylic resin 35 SprayE 1890 6 18.9 50 Urethane resin 5 Spray G 1891 7 75.9 51 Polyester resin200 Brush E 1892 6 55.9 83 Alkali silicate 25 Spray E 1893 6 53.8 82Alkali silicate 15 Spray E 1894 2 97.5 88 Alkyl silicate 20 Spray E 18957 88.4 85 Alkali silicate 18 Spray E 1896 2 54.8 87 Alkyl silicate 22Spray E 1897 2 45.7 86 Alkali silicate 19 Spray E 1898 6 34.7 46 Alkylsilicate 29 Spray E 1899 7 57.9 49 Alkali silicate 23 Spray E 1900 765.4 35 Alkyl silicate 21 Spray E 1901 6 87.9 30 Alkali silicate 19Spray E

TABLE 98 Percent of fine- Diameter grain distribution metal Mg solid(Ave grains Alloy solution phase diameter) of among Zn Chemicalcomponent grain and Zn—Mg Zn metal metal content of Zn metal fractureintermetallic alloy grains grains/ grains/Zn alloy surfaces compoundsInvention (μm) Zn alloy grains or present on Example Fine Coarse grains(Mass %) cracks grain No metal metal (Vol %) Zn Mg Al Si present? Aveaspect ratio surfaces? 1902 2.31 9.46 60.57 91.56 6.4 1.05 0.99 Yes 1.27Yes 1903 2.62 9.46 39.48 93.36 3.5 2.6 0.54 Yes 1.17 Yes 1904 2.52 9.4615.82 82.13 17.5 0.05 0.32 Yes 1.27 Yes 1905 2.24 13.32 49.57 91.2 3.65.2 0 No 1.27 Yes 1906 0.05 6.54 86.52 94.1 5.9 0 0.001 Yes 1.48 Yes1907 2.42 6.35 90.98 83.2 16.2 0 0.6 No 1.49 Yes 1908 0.11 7.54 67.3276.7 22.5 0 0.8 Yes 1.34 Yes 1909 1.92 8.64 82.33 96.52 3.4 0.04 0.04Yes 1.23 Yes 1910 0.46 6.45 73.76 68.3 26.5 3 2.2 Yes 1.23 Yes 1911 0.776.48 88.77 72.84 25.5 0.06 1.6 Yes 1.23 Yes 1912 2.35 9.25 45.02 87.212.8 0 0 Yes 1.05 Yes 1913 2.33 9.46 15.2 91.5 8.5 0 0 Yes 1.06 Yes 19141.95 9.32 51.41 75.23 24.5 0.27 0 Yes 1.38 Yes 1915 2.15 9.22 45.4677.48 18.4 2.55 1.57 Yes 1.06 Yes 1916 2.23 11.62 35.19 72.62 0.08 25.51.8 Yes 1.49 Yes 1917 2.26 11.15 73.02 64.06 15.2 19.4 1.34 No 1.34 Yes1918 1.98 9.34 93.45 83 6.4 10.6 0 Yes 1.48 Yes 1919 2.02 9.58 30.6686.4 3.2 10.4 0 No 1.49 Yes 1920 2.36 12.28 32.76 80.4 6.1 13.5 0.001Yes 1.29 Yes 1921 3.05 12.52 30.89 70.1 16.8 12.5 0.6 Yes 1.23 Yes 19222.57 11.9 45.9 60.9 27.5 10.8 0.8 Yes 1.23 Yes Coating details Ratio offine metal grains in coat outermost Any of surface MgZn2, layer 10%Total Mg2Zn11, thickness metal Mg2Zn3, to total grain Invention MgZn,Number fine metal content Coat Example Mg7Zn3, of grains of coatthickness Coating Corrosion No present? faces (Mass %) (Mass %) Baseresin type (μm) method Test Results 1902 Yes 7 2.9 76 Alkyl silicate 15Spray E 1903 Yes 7 12.6 72 Alkali silicate 18 Spray E 1904 Yes 6 53.8 30Alkyl silicate 22 Spray E 1905 Yes 7 17.8 83 Alkyl silicate 21 Spray E1906 Yes 2 34.7 75 Alkyl silicate 29 Spray E 1907 Yes 7 76.8 76 Alkalisilicate 23 Spray E 1908 Yes 7 58.9 72 Alkyl silicate 21 Spray E 1909Yes 2 50.8 83 Alkali silicate 19 spray E 1910 Yes 6 46.8 50 Alkylsilicate 21 Spray E 1911 Yes 6 23.7 72 Alkali silicate 19 Spray E 1912Yes 2 87.9 50 Acrylic resin 654 Spray E 1913 Yes 6 2.9 48 Alkalisilicate 700 Spray E 1914 Yes 7 12.6 75 Alkyl silicate 555 Spray E 1915Yes 7 53.8 55 Alkyl silicate 321 Spray E 1916 Yes 6 17.8 38 Alkylsilicate 152 Brush E 1917 Yes 7 34.7 48 Urethane resin 674 Spray E 1918Yes 7 76.8 76 Polyester resin 325 Spray E 1919 Yes 6 58.9 72 Alkylsilicate 665 Spray E 1920 Yes 7 50.8 75 Alkyl silicate 354 Brush E 1921Yes 6 46.8 76 Alkyl silicate 165 Spray E 1922 Yes 7 23.7 72 Urethaneresin 354 Spray E

TABLE 99 Percent Diameter of fine- distribution grain (peak metalAverage diameter) of grains diameter Zn metal among Zn of later-grains/Zn metal Chemical component Alloy grain added Zn alloy grainsgrains/ content of Zn metal fracture Invention metal (μm) Zn alloygrains/Zn alloy grains surfaces Example grains Fine Coarse grains (Mass%) or cracks No (μm) metal metal (Vol %) Zn Mg Al Si present? Ave aspectratio 1923 23.5 2.65 9.56 5.66 100 0 0 0 No — 1924 5.96 0.05 6.5 16.55100 0 0 0 No — 1925 10.64 4.6 65.5 21.55 100 0 0 0 No — 1926 16.5 3.5613.5 5.66 100 0 0 0 No — 1927 7.95 4.55 16.7 33.66 100 0 0 0 No — 19287.95 2.15 9.89 45.65 100 0 0 0 No — 1929 9.64 3.22 10.55 49.88 100 0 0 0No — 1930 0.96 2.99 9.64 42.33 100 0 0 0 No — 1931 5.26 3.65 11.22 65.44100 0 0 0 No — 1932 13.5 4.55 13.5 77.55 100 0 0 0 No — 1933 13.5 3.5722.5 96.55 100 0 0 0 No — 1934 9.64 1.99 8.56 5.97 100 0 0 0 No — 193516.5 2.12 9.46 87.77 100 0 0 0 No — 1936 20.59 2.45 11.1 86.55 100 0 0 0No — 1937 0.96 1.85 8.92 15.67 100 0 0 0 No — 1938 6.54 1.65 9.23 31.55100 0 0 0 No — 1939 5.26 2.45 9.05 26.76 100 0 0 0 No — 1940 10.64 2.0110.91 67.89 100 0 0 0 No — 1941 9.64 1.99 11.12 56.89 100 0 0 0 No —1942 6.9 2.38 10.93 45.67 100 0 0 0 No — 1943 10.5 2.49 9.34 34.67 100 00 0 No — Ratio of (Zn metal grains or Zn alloy Coating detailsgrains):(Later-added Mg Total Zn metal grains) content metal Zn metalLater- of all grain Invention grains/ added Zn metal content CoatCorrosion Example Zn alloy metal grains of coat thickness Coating TestNo grains grains (Mass %) (Mass %) Base resin type (μm) method Results1923 1 299.5 — 35 Alkali silicate 2 Spray G 1924 1 12.5 — 66 Alkylsilicate 37 Spray E 1925 1 3.5 — 38 Alkali silicate 12 Spray E 1926 11.4 — 84 Alkyl silicate 160 Brush E 1927 1 6.8 — 39 Alkali silicate 5Brush G 1928 1 136.5 — 85 Alkyl silicate 12 Brush E 1929 1 14.5 — 36Alkali silicate 2 Spray G 1930 1 0.08 — 56 Alkyl silicate 18 Spray E1931 1 1.6 — 42 Alkyl silicate 23 Spray E 1932 1 3.9 — 31 Epoxy resin 30Brush E 1933 1 10.5 — 88 Acrylic resin 77 Brush E 1934 1 4.9 — 78Urethane resin 254 Brush E 1935 1 33.5 — 36 Polyester resin 47 Spray E1936 1 2.5 — 37 Epoxy resin 43 Spray E 1937 1 1.9 — 45 Acrylic resin 322Brush E 1938 1 7.1 — 68 Urethane resin 20 Brush E 1939 1 9.4 — 79Polyester resin 700 Brush E 1940 1 16.8 — 47 Alkali silicate 22 Spray E1941 1 75.5 — 56 Alkyl silicate 25 Spray E 1942 1 4.5 — 37 Alkalisilicate 14 Spray E 1943 1 0.9 — 90 Urethane resin 112 Spray E

TABLE 100 Percent Diameter of fine- distribution grain (peak metalAverage diameter) of grains diameter Zn metal among Zn Alloy of later-grains/Zn metal Chemical component grain added Zn alloy grains grains/content of Zn metal fracture Invention metal (μm) Zn alloy grains/Znalloy grains surfaces Example grains Fine Coarse grains (Mass %) orcracks No (μm) metal metal (Vol %) Zn Mg Al Si present? Ave aspect ratio1944 13.5 2.34 8.77 95.66 100 0 0 0 No — 1945 20.59 3.99 27.6 34.21 1000 0 0 No — 1946 7.82 1.02 21.9 7.88 100 0 0 0 No — 1947 5.26 0.05 22.592.32 100 0 0 0 No — 1948 7.06 2.01 17.5 11.22 100 0 0 0 No — 1949 0.641.51 6.99 55.66 100 0 0 0 No — 1950 46.8 2.38 7.65 78.99 100 0 0 0 No —1951 9.64 1.99 8.56 5.97 100 0 0 0 No — 1952 16.5 2.49 9.34 34.67 100 00 0 No — 1953 20.59 1.02 21.9 7.88 100 0 0 0 No — 1954 16.5 2.35 9.2535.87 88.8 11.2 0 0 Yes 1.12 1955 13.5 2.57 9.56 42.04 90.6 9.4 0 0 No1.38 1956 0.96 2.56 9.84 6.55 81.45 18.5 0 0.05 Yes 1.22 1957 0.96 2.219.75 43.60 99.97 0.03 0 0 Yes 1.14 1958 8.45 2.64 9.85 44.12 98.4 1.6 00 No 1.02 1959 2.9 1.99 8.56 37.21 93.2 6.8 0 0 Yes 1.05 1960 5.4 2.948.21 43.38 84.5 13.9 0 1.6 No 1.36 1961 10.6 2.58 8.33 13.52 98.1 1.9 00 Yes 1.11 1962 2.32 2.37 8 44.94 94.3 5.7 0 0 No 1.07 1963 7.8 2.159.22 45.46 90.8 9.2 0 0 No 1.42 1964 7.95 2.96 9.36 35.96 83.3 15.4 01.3 Yes 1.38 Ratio of (Zn metal grains or Zn alloy Coating detailsgrains):(Later-added Mg Total Zn metal grains) content metal Zn metalLater- of all grain Invention grains/ added Zn metal content CoatCorrosion Example Zn alloy metal grains of coat thickness Coating TestNo grains grains (Mass %) (Mass %) Base resin type (μm) method Results1944 1 3.2 — 43 Alkali silicate 554 Spray E 1945 1 5.2 — 38 Urethaneresin 150 Spray E 1946 1 1.6 — 56 Alkali silicate 18 Spray E 1947 1 85.5— 89 Alkyl silicate 657 Brush E 1948 1 52.2 — 32 Alkyl silicate 24 SprayE 1949 1 3.6 — 55 Urethane resin 99 Spray E 1950 1 1.7 — 79 Alkylsilicate 7 Spray E 1951 1 4.9 — 78 Epoxy resin 100 Spray E 1952 1 33.5 —77 Alkyl silicate 27 Brush E 1953 1 2.5 — 56 Alkali silicate 15 Spray E1954 1 5 1.867 49 Alkyl silicate 14 Spray E 1955 1 198.7 0.047 89Urethane resin 55 Spray E 1956 1 36 0.500 90 Alkyl silicate 8 Spray E1957 1 1.5 0.012 86 Urethane resin 122 Brush E 1958 1 0.008 1.587 48Alkyl silicate 555 Spray E 1959 1 1.4 2.833 47 Alkali silicate 19 SprayE 1960 1 4.2 2.673 47 Alkyl silicate 25 Brush E 1961 1 1.6 0.731 47Alkyl silicate 58 Spray E 1962 1 7.5 0.671 52 Alkyl silicate 685 Spray E1963 1 1.6 3.538 52 Alkali silicate 19 Brush E 1964 1 2 5.133 52Urethane resin 700 Spray E

TABLE 101 Percent Diameter of fine- distribution grain (peak metalAverage diameter) of grains diameter Zn metal among Zn of later-grains/Zn metal Chemical component Alloy grain added Zn alloy grainsgrains/ content of Zn metal fracture Invention metal (μm) Zn alloygrains/Zn alloy grains surfaces Example grains Fine Coarse grains (Mass%) or cracks Ave No (μm) metal metal (Vol %) Zn Mg Al Si present? aspectratio 1965 20.59 2.85 9.45 42.13 79.84 18.6 0 1.56 Yes 1.22 1966 22.52.94 9.61 7.56 96.4 3.6 0 0 Yes 1.14 1967 4.6 2.11 9.85 43.69 94.6 5.4 00 Yes 1.13 1968 4.9 2.68 9.23 44.21 92.4 7.6 0 0 Yes 1.02 1969 10.5 2.999.08 39.51 75.5 24.5 0 0 Yes 1.06 1970 8.45 2.78 9.87 45.68 82.4 17.6 00 Yes 1.05 1971 30.5 2.96 9.46 65.58 98.6 1.4 0 0 Yes 1.24 1972 49.52.85 9.28 47.24 78.5 21.5 0 0 Yes 1.33 1973 5.9 2.64 9.45 47.76 89.610.4 0 0 Yes 1.27 1974 4.52 2.35 9.25 45.02 87.2 12.8 0 0 Yes 1.05 19755.96 2.12 9.46 47.02 92.2 7.8 0 0 Yes 1.22 1976 5.5 2.34 9.46 7.66 70.529.5 0 0 Yes 1.13 1977 3.6 2.33 9.46 15.20 91.5 8.5 0 0 Yes 1.06 197816.5 2.23 9.06 43.16 74.5 25.5 0 0 Yes 1.05 1979 12.5 2.12 9.3 49.3399.93 0.07 0 0 Yes 1.24 1980 16.5 2.21 8.68 19.47 89.2 10.8 0 0 No 1.051981 10.9 1.38 8.53 69.55 86 11.2 1.6 1.2 No 1.12 1982 5.6 1.95 9.3251.41 75.23 24.5 0.27 0 Yes 1.38 1983 22.6 2.26 8.95 75.88 82.6 17.4 0 0Yes 1.13 1984 20.59 2.05 12.54 48.08 98.7 1.3 0 0 Yes 1.33 1985 20.591.65 8.7 66.85 80.5 19.5 0 0 Yes 1.27 Ratio of (Zn metal grains or Znalloy Coating details grains):(Later-added Mg Total Zn metal grains)content metal Zn metal Later- of all grain Invention grains/ added Znmetal content Coat Corrosion Example Zn alloy metal grains of coatthickness Coating Test No grains grains (Mass %) (Mass %) Base resintype (μm) method Results 1965 1 270 0.069 88 Alkyl silicate 77 Spray E1966 1 7.5 0.424 87 Alkyl silicate 54 Spray E 1967 1 2.9 1.385 89 Alkylsilicate 64 Spray E 1968 1 2.6 2.111 90 Alkyl silicate 34 Brush E 1969 10.1 22.273 91 Alkali silicate 28 Spray E 1970 1 1.2 8.000 46 Urethaneresin 109 Brush E 1971 1 1.2 0.636 47 Alkyl silicate 15 Spray E 1972 162 0.341 47 Alkyl silicate 14 Spray E 1973 1 2.4 3.059 49 Alkyl silicate18 Spray E 1974 1 2.1 4.129 50 Alkali silicate 2 Spray G 1975 1 34.50.220 87 Alkyl silicate 37 Spray E 1976 1 270 0.109 83 Alkali silicate12 Spray E 1977 1 32.5 0.254 48 Alkyl silicate 160 Brush E 1978 1 36.375 51 Alkali silicate 5 Brush G 1979 1 1.5 0.028 51 Alkyl silicate 56Brush E 1980 1 7.5 1.271 87 Alkali silicate 2 Spray G 1981 1 13.5 0.77285 Alkyl silicate 18 Spray E 1982 1 5 4.083 86 Alkyl silicate 23 Spray E1983 1 5 2.900 50 Epoxy resin 30 Brush E 1984 1 1 0.650 51 Acrylic resin77 Brush E 1985 1 120 0.161 51 Urethane resin 655 Brush E

TABLE 102 Percent Diameter of fine- distribution grain (peak metalAverage diameter) of grains diameter Zn metal among Zn of later-grains/Zn metal Chemical component Alloy grain added Zn alloy grainsgrains/ content of Zn metal fracture Invention metal (μm) Zn alloygrains/Zn alloy grains surfaces Example grains Fine Coarse grains (Mass%) or cracks Ave No (μm) metal metal (Vol %) Zn Mg Al Si present? aspectratio 1986 9.56 2.35 8.55 7.68 88.85 10.8 0.05 0.3 No 1.23 1987 5.9 1.628.91 8.64 87.7 11.9 0.4 0 Yes 1.11 1988 6.54 1.88 9.91 16.58 90.5 9.5 00 Yes 1.42 1989 21.4 2.35 9.25 35.87 89.5 10.5 0 0 Yes 1.06 1990 9.82.57 9.56 42.04 84.9 15.1 0 0 Yes 1.05 1991 6.59 2.56 9.84 38.41 83.216.8 0 0 Yes 1.07 1992 6.54 2.21 9.75 6.99 89.4 10.6 0 0 Yes 1.42 199316.5 2.64 9.85 44.12 84.3 13.3 2.4 0 Yes 1.38 1994 7.8 2.65 8.56 66.9998.6 1.4 0 0 No 1.22 1995 16.5 2.94 8.21 43.38 76.45 23.5 0 0.05 Yes1.14 1996 6.54 2.58 8.33 39.75 91.1 8.9 0 0 Yes 1.13 1997 8.45 2.37 865.38 85.1 14.9 0 0 Yes 1.02 1998 8.5 2.15 9.22 45.46 77.48 18.4 2.551.57 Yes 1.06 1999 13.6 2.96 9.36 22.55 97.9 2.1 0 0 Yes 1.05 2000 12.332.85 9.45 42.13 94.8 5.2 0 0 Yes 1.24 2001 16.5 2.94 9.61 38.50 84.615.4 0 0 Yes 1.33 2002 7.9 2.11 9.85 64.13 89.3 10.7 0 0 Yes 1.27 200310.5 2.68 9.23 44.21 83.3 16.7 0 0 Yes 1.05 2004 16.5 2.99 9.08 39.5180.05 19.6 0.35 0 No 1.12 2005 10.64 1.82 9.87 78.64 85.5 14.5 0 0 No1.23 2006 10.5 1.42 9.46 42.05 85 14.2 0 0.8 No 1.36 Ratio of (Zn metalgrains or Zn alloy Coating details grains):(Later-added Mg Total Znmetal grains) content metal Zn metal Later- of all grain Inventiongrains/ added Zn metal content Coat Corrosion Example Zn alloy metalgrains of coat thickness Coating Test No grains grains (Mass %) (Mass %)Base resin type (μm) method Results 1986 1 3.7 2.298 80 Polyester resin47 Spray E 1987 1 6.1 1.676 46 Epoxy resin 43 Spray E 1988 1 198.5 0.04851 Acrylic resin 52 Brush E 1989 1 2.5 3.000 86 Urethane resin 20 BrushE 1990 1 18.5 0.774 85 Polyester resin 200 Brush E 1991 1 8 1.867 82Alkali silicate 22 Spray E 1992 1 1.6 4.077 81 Alkyl silicate 25 Spray E1993 1 1.2 6.045 46 Alkali silicate 14 Spray E 1994 1 0.5 0.933 47Urethane resin 112 Spray E 1995 1 9 2.350 48 Alkali silicate 24 Spray E1996 1 4.5 1.618 51 Urethane resin 150 Spray E 1997 1 136 0.109 53Alkali silicate 18 Spray E 1998 1 13 1.314 88 Alkyl silicate 19 Brush E1999 1 10.6 0.181 85 Alkyl silicate 24 Spray E 2000 1 1.6 2.000 83Urethane resin 99 Spray E 2001 1 68 0.223 82 Alkyl silicate 7 Spray E2002 1 4.5 1.945 83 Epoxy resin 100 Spray E 2003 1 10.5 1.452 47 Alkylsilicate 27 Brush E 2004 1 4.9 3.322 51 Alkali silicate 15 Spray E 20051 10.5 1.261 52 Alkyl silicate 14 Spray E 2006 1 192 0.074 51 Urethaneresin 55 Spray E

TABLE 103 Percent Diameter of fine- distribution grain (peak metalAverage diameter) of grains diameter Zn metal among Zn of later-grains/Zn metal Chemical component Alloy grain added Zn alloy grainsgrains/ content of Zn metal fracture Invention metal (μm) Zn alloygrains/Zn alloy grains surfaces Example grains Fine Coarse grains (Mass%) or cracks Ave No (μm) metal metal (Vol %) Zn Mg Al Si present? aspectratio 2007 20.59 2.12 9.28 64.58 87.3 12.7 0 0 No 1.11 2008 8.5 1.929.45 47.76 89.5 10.5 0 0 Yes 1.07 2009 0.5 2.11 9.63 24.10 87.3 11.8 00.9 Yes 1.42 2010 10.5 2.97 9.16 39.11 86.4 12.8 0.5 0.3 Yes 1.38 201111.5 2.36 10.39 19.65 93.8 6.2 0 0 Yes 1.22 2012 36.5 3.05 10.56 65.3983.8 16.2 0 0 Yes 1.14 2013 1.5 2.15 10.74 48.57 80.4 19.6 0 0 Yes 1.132014 8.7 2.19 10.27 24.91 87.6 12.4 0 0 Yes 1.02 2015 7.8 2.48 11.539.92 89.3 10.7 0 0 Yes 1.06 2016 5.96 2.85 11.67 22.65 91.5 8.5 0 0 Yes1.05 2017 0.06 2.75 11.85 66.20 94.9 5.1 0 0 Yes 1.24 2018 0.9 2.4611.38 49.38 75.5 24.5 0 0 Yes 1.33 2019 3.6 2.71 12.61 30.58 86.5 13.5 00 Yes 1.27 2020 10.5 2.36 12.78 45.59 80 20 0 0 Yes 1.05 2021 0.05 2.169.57 28.32 84.5 15.5 0 0 Yes 1.12 2022 2.32 2.46 9.81 71.87 88 10.5 1.50 Yes 1.23 2023 20.4 2.49 8.43 53.05 92.1 7.9 0 0 Yes 1.36 2024 7.342.95 8.55 27.74 95.2 4.8 0 0 Yes 1.11 2025 9.4 2.36 8.22 42.75 81.6 18.40 0 Yes 1.07 2026 23.43 2.21 9.44 23.29 86.8 12.7 0 0.5 Yes 1.42 20275.96 2.25 9.58 61.12 89.7 10.3 0 0 No 1.38 Ratio of (Zn metal grains orZn alloy Coating details grains):(Later-added Mg Total Zn metal grains)content metal Zn metal Later- of all grain Invention grains/ added Znmetal content Coat Corrosion Example Zn alloy metal grains of coatthickness Coating Test No grains grains (Mass %) (Mass %) Base resintype (μm) method Results 2007 1 0.07 11.869 52 Alkyl silicate 8 Spray E2008 1 9.5 1.000 89 Urethane resin 122 Brush E 2009 1 2.6 3.278 85 Alkylsilicate 54 Spray E 2010 1 4.5 2.327 82 Alkali silicate 19 Spray E 20111 3 1.550 87 Alkyl silicate 25 Brush E 2012 1 7.5 1.908 88 Alkylsilicate 58 Spray E 2013 1 77 0.251 49 Alkyl silicate 21 Spray E 2014 110.5 1.078 50 Alkali silicate 19 Brush E 2015 1 15.5 0.648 51 Urethaneresin 56 Spray E 2016 1 5.8 1.250 52 Alkyl silicate 77 Spray E 2017 11.9 1.759 53 Alkyl silicate 12 Spray E 2018 1 16.9 1.369 88 Alkylsilicate 64 Spray E 2019 1 1.5 5.400 85 Alkyl silicate 34 Brush E 2020 10.05 19.048 83 Alkali silicate 28 Spray E 2021 1 215 0.072 81 Urethaneresin 109 Brush E 2022 1 4.2 2.019 80 Alkyl silicate 15 Spray E 2023 11.5 3.160 47 Alkyl silicate 14 Spray E 2024 1 4.8 0.828 49 Alkylsilicate 18 Spray E 2025 1 0.5 12.267 50 Urethane resin 122 Brush E 20261 2.3 3.848 51 Alkyl silicate 54 Spray E 2027 1 0.05 9.810 52 Alkalisilicate 19 Spray E

TABLE 104 Percent Diameter of fine- distribution grain (peak metalAverage diameter) of grains diameter Zn metal among Zn Alloy of later-grains/Zn metal Chemical component grain added Zn alloy grains grains/content of Zn metal fracture Invention metal (μm) Zn alloy grains/Znalloy grains surfaces Example grains Fine Coarse grains (Mass %) orcracks Ave No (μm) metal metal (Vol %) Zn Mg Al Si present? aspect ratio2028 10.64 2.44 9.67 44.30 71.2 20.8 8 0 Yes 1.22 2029 16.5 2.78 9.8323.96 97.5 2.5 0 0 No 1.14 2030 7.95 2.15 10.07 44.09 84.8 15.2 0 0 Yes1.13 2031 7.95 2.19 9.45 24.63 80.8 19.2 0 0 No 1.02 2032 9.64 2.48 9.362.46 78.7 13.5 7.8 0 Yes 1.06 2033 0.96 2.59 9.99 45.64 88.1 11.9 0 0No 1.05 2034 5.26 2.47 9.58 25.30 88.5 10.6 0 0.9 Yes 1.24 2035 13.52.69 9.4 42.84 84.6 15.4 0 0 Yes 1.33 2036 13.5 2.57 9.57 25.44 97.4 2.60 0 Yes 1.27 2037 9.64 2.49 9.54 63.27 83.3 16.7 0 0 Yes 1.37 2038 16.52.68 9.58 46.45 91.9 8.1 0 0 Yes 1.10 2039 20.59 2.35 9.25 46.45 86.313.7 0 0 Yes 1.04 2040 0.96 2.48 10.04 50.91 81.5 18.5 0 0 Yes 1.02 20416.54 2.13 11.27 27.25 97.6 2.4 0 0 Yes 1.01 2042 5.26 1.93 11.44 42.2689.1 10.9 0 0 Yes 1.08 2043 10.64 2.05 8.9 33.69 92.8 7.2 0 0 Yes 1.142044 9.64 1.42 8.75 48.70 81.96 17.5 0.5 0.04 No 1.23 2045 6.9 1.46 9.4429.24 85.4 14.6 0 0 No 1.33 2046 10.5 1.75 9.03 67.07 90.6 9.4 0 0 Yes1.37 2047 13.5 1.86 8.85 50.25 92.9 7.1 0 0 Yes 1.44 2048 20.59 1.748.95 29.91 77.5 22.5 0 0 Yes 1.21 Ratio of (Zn metal grains or Zn alloyCoating details grains):(Later-added Mg Total Zn metal grains) contentmetal Zn metal Later- of all grain Invention grains/ added Zn metalcontent Coat Corrosion Example Zn alloy metal grains of coat thicknessCoating Test No grains grains (Mass %) (Mass %) Base resin type (μm)method Results 2028 1 120 0.172 83 Alkyl silicate 25 Brush E 2029 1 3.70.532 88 Alkyl silicate 58 Spray E 2030 1 16.5 0.869 85 Alkyl silicate21 Spray E 2031 1 24 0.768 83 Alkali silicate 19 Brush E 2032 1 0.0113.366 82 Urethane resin 56 Spray E 2033 1 7.8 1.352 47 Alkyl silicate77 Spray E 2034 1 1.6 4.077 46 Alkyl silicate 54 Spray E 2035 1 3.23.667 49 Alkali silicate 2 Spray G 2036 1 5.4 0.406 50 Alkali silicate20 Spray E 2037 1 220 0.076 51 Alkali silicate 5 Spray G 2038 1 2.22.531 83 Alkyl silicate 20 Spray E 2039 1 2.8 3.605 82 Alkali silicate15 Brush E 2040 1 12 1.423 88 Alkyl silicate 57 Brush E 2041 1 10.60.207 85 Alkali silicate 13 Brush E 2042 1 35 0.303 86 Alkyl silicate 22Brush E 2043 1 125.5 0.057 47 Alkali silicate 20 Spray E 2044 1 6 2.50048 Alkyl silicate 27 Spray E 2045 1 34 0.417 50 Alkali silicate 15 SprayE 2046 1 1.6 3.615 51 Alkyl silicate 35 Spray E 2047 1 7.5 0.835 52Alkali silicate 34 Brush E 2048 1 200 0.112 88 Alkyl silicate 45 Brush E

TABLE 105 Percent Diameter of fine- distribution grain (peak metalAverage diameter) of grains diameter Zn metal among Zn of later-grains/Zn metal Chemical component Alloy grain added Zn alloy grainsgrains/ content of Zn metal fracture Invention metal (μm) Zn alloygrains/Zn alloy grains surfaces Example grains Fine Coarse grains (Mass%) or cracks Ave No (μm) metal metal (Vol %) Zn Mg Al Si present? aspectratio 2049 7.82 1.96 12.54 87.50 84.8 13.7 1.5 0 No 1.22 2050 5.26 1.658.7 30.58 87.1 12.9 0 0 No 1.23 2051 7.06 2.35 8.55 68.41 95.7 4.3 0 0Yes 1.47 2052 0.64 1.62 10.72 54.59 80.2 17.6 1 1.2 No 1.01 2053 46.82.25 9.9 34.25 98.8 0.6 0.6 0 Yes 1.04 2054 16.5 2.36 9.57 37.61 86.910.3 1.6 1.2 Yes 1.05 2055 13.5 2.24 10.79 45.60 92.98 7 0.02 0 Yes 1.122056 0.96 2.46 10.93 46.70 75.5 23.5 1 0 Yes 1.11 2057 0.96 1.56 11.0241.22 82.5 17.5 0 0 No 1.08 2058 8.45 1.24 11.18 45.68 80.1 12.4 7.5 0Yes 1.47 2059 2.9 1.68 11.42 22.02 85.09 14.9 0 0.01 Yes 1.50 2060 5.42.65 10.8 37.03 78.7 20.7 0 0.6 No 1.13 2061 10.6 2.22 10.65 28.46 91.298.6 0 0.11 Yes 1.26 2062 2.32 2.45 11.34 43.47 85.8 14.2 0 0 Yes 1.142063 7.8 2.23 11.62 35.19 98.12 0.08 0 1.8 Yes 1.49 2064 7.95 2.26 11.1573.02 83.46 15.2 0 1.34 No 1.34 2065 20.59 2.72 12.38 56.20 73.17 17.4 90.43 Yes 1.18 2066 22.5 2.13 12.55 35.86 98.6 0.8 0.6 0 Yes 1.17 20674.6 1.98 9.34 93.45 93.55 6.4 0.05 0 Yes 1.48 2068 4.9 2.02 9.58 30.6696.78 3.2 0.02 0 No 1.49 2069 10.5 2.21 9.88 74.21 83 9.2 7.8 0 Yes 1.27Ratio of (Zn metal grains or Zn alloy Coating detailsgrains):(Later-added Mg Total Zn metal grains) content metal Zn metalLater- of all grain Invention grains/ added Zn metal content CoatCorrosion Example Zn alloy metal grains of coat thickness Coating TestNo grains grains (Mass %) (Mass %) Base resin type (μm) method Results2049 1 7.5 1.612 89 Alkali silicate 52 Brush E 2050 1 3.2 3.071 86 Alkylsilicate 23 Brush E 2051 1 2.6 1.194 87 Alkali silicate 5 Spray E 2052 13 4.400 86 Alkyl silicate 52 Brush E 2053 1 15.2 0.037 46 Alkalisilicate 150 Brush E 2054 1 0.09 9.450 49 Alkyl silicate 60 Brush E 20551 13.5 0.483 35 Alkali silicate 15 Spray E 2056 1 135.4 0.172 37 Alkylsilicate 24 Spray E 2057 1 3 4.375 36 Alkali silicate 34 Spray E 2058 17.8 1.409 38 Alkyl silicate 20 Brush E 2059 1 10.2 1.330 48 Alkalisilicate 200 Brush E 2060 1 7 2.588 46 Alkyl silicate 56 Brush E 2061 1225.2 0.038 51 Alkali silicate 34 Spray E 2062 1 5.4 2.219 46 Alkylsilicate 2 Spray G 2063 1 3.2 0.019 38 Alkali silicate 15 Spray E 2064 113.5 1.048 48 Alkali silicate 10 Spray E 2065 1 1.6 6.692 52 Alkylsilicate 125 Brush E 2066 1 1.5 0.320 30 Alkali silicate 24 Brush E 20671 2.5 1.829 76 Alkyl silicate 110 Brush E 2068 1 2.6 0.889 72 Alkalisilicate 24 Brush E 2069 1 126 0.072 81 Alkyl silicate 2 Spray G

TABLE 106 Percent Diameter of fine- distribution grain (peak metalAverage diameter) of grains diameter Zn metal among Zn of later-grains/Zn metal Chemical component Alloy grain added Zn alloy grainsgrains/ content of Zn metal fracture Invention metal (μm) Zn alloygrains/Zn alloy grains surfaces Example grains Fine Coarse grains (Mass%) or cracks Ave No (μm) metal metal (Vol %) Zn Mg Al Si present? aspectratio 2070 8.45 2.55 10 55.39 70.92 19.2 9.88 0 Yes 1.17 2071 30.5 1.9210.67 30.08 80.25 15.1 4.65 0 Yes 1.16 2072 49.5 1.96 11.89 45.09 81.8514.5 3.65 0 Yes 1.27 2073 5.9 2.11 12.03 41.41 89.45 10.5 0.05 0 Yes1.27 2074 4.52 2.97 12.12 17.75 87.3 7.5 5.2 0 Yes 1.49 2075 5.96 2.3612.28 32.76 93.9 6.1 0 0.001 Yes 1.29 2076 5.5 3.05 12.52 30.89 82.5516.8 0.05 0.6 Yes 1.23 2077 3.6 2.57 11.9 45.90 70.7 27.5 1 0.8 Yes 1.232078 16.5 2.65 11.75 42.22 94.6 2.9 0 2.5 Yes 1.23 2079 12.5 2.54 12.4418.56 94 4.5 0 1.5 No 1.23 2080 16.5 2.85 12.03 33.57 99.43 0.07 0 0.5Yes 1.27 2081 10.9 2.75 10.61 31.70 96.82 3.1 0.04 0.04 Yes 1.23 20825.6 2.46 11.3 46.71 76.3 20.5 1 2.2 Yes 1.36 2083 22.6 2.71 11.58 47.8968.84 29.5 0.06 1.6 Yes 1.11 2084 20.59 2.36 11.11 24.23 92.33 7.6 0.070 Yes 1.02 2085 20.59 2.16 12.34 39.24 95.2 0.7 1.2 2.9 Yes 1.05 20869.56 2.46 12.51 37.37 91.8 4.6 1.8 1.8 Yes 1.24 2087 5.9 2.49 11.6450.38 82 8.3 9.2 0.5 Yes 1.33 2088 6.54 1.63 9.16 37.14 88.2 11.8 0 0Yes 1.27 2089 21.4 1.51 9.46 13.48 86.06 12.9 0 1.04 Yes 1.50 2090 9.83.05 9.54 40.05 99.34 0.6 0 0.06 Yes 1.13 Ratio of (Zn metal grains orZn alloy Coating details grains):(Later-added Mg Total Zn metal grains)content metal Zn metal Later- of all grain Invention grains/ added Znmetal content Coat Corrosion Example Zn alloy metal grains of coatthickness Coating Test No grains grains (Mass %) (Mass %) Base resintype (μm) method Results 2070 1 120 0.159 64 Alkali silicate 37 Spray E2071 1 7.5 1.776 69 Alkyl silicate 113 Brush E 2072 1 6.5 1.933 83Alkali silicate 2 Spray G 2073 1 20 0.500 30 Alkyl silicate 75 Brush E2074 1 0.007 7.448 83 Alkali silicate 30 Brush E 2075 1 9 0.610 75 Alkylsilicate 34 Brush E 2076 1 7.5 1.976 76 Epoxy resin 124 Brush E 2077 150 0.539 72 Acrylic resin 15 Spray E 2078 1 0.005 2.886 71 Urethaneresin 23 Spray E 2079 1 25.6 0.169 82 Polyester resin 157 Brush E 2080 156.5 0.001 81 Epoxy resin 26 Spray E 2081 1 1.6 1.192 83 Acrylic resin38 Spray E 2082 1 3 5.125 50 Urethane resin 160 Brush E 2083 1 100 0.29272 Polyester resin 27 Brush E 2084 1 65.5 0.114 47 Epoxy resin 180 BrushE 2085 1 1.9 0.241 47 Acrylic resin 26 Spray E 2086 1 2.1 1.484 52Urethane resin 180 Brush E 2087 1 10.5 0.722 52 Polyester resin 15 SprayE 2088 1 6.5 1.573 50 Epoxy resin 2 Spray G 2089 1 19.5 0.629 46 Acrylicresin 28 Spray E 2090 1 0.8 0.333 47 Urethane resin 30 Spray E

TABLE 107 Percent Diameter of fine- distribution grain (peak metalAverage diameter) of grains diameter Zn metal among Zn of later-grains/Zn metal Chemical component Alloy grain added Zn alloy grainsgrains/ content of Zn metal fracture Invention metal (μm) Zn alloygrains/Zn alloy grains surfaces Example grains Fine Coarse grains (Mass%) or cracks Ave No (μm) metal metal (Vol %) Zn Mg Al Si present? aspectratio 2091 6.59 2.57 9.56 38.18 89.51 9.5 0 0.99 No 1.04 2092 6.54 2.659.46 7.63 88.3 11.7 0 0 Yes 1.02 2093 16.5 2.54 11.99 37.95 89.9 9.4 0.70 Yes 1.08 2094 7.8 2.85 12.08 14.29 87.8 11.7 0.5 0 Yes 1.15 2095 16.52.75 12.24 40.86 95.6 4.2 0.2 0 Yes 1.34 2096 6.54 2.46 12.48 97.5097.13 2.8 0.07 0 Yes 1.25 2097 8.45 2.71 11.86 13.30 86.1 13.9 0 0 Yes1.19 2098 8.5 2.36 11.71 43.62 82.6 14.6 1.6 1.2 No 1.18 2099 13.6 2.4611.35 56.93 72.95 26.4 0.65 0 Yes 1.24 2100 12.33 1.45 12.02 36.59 83.2316.5 0.27 0 Yes 1.11 2101 16.5 2.42 13.24 39.95 79.4 19.5 0.45 0.65 Yes1.27 2102 7.9 2.11 9.46 86.50 97.08 1.6 0.33 0.99 Yes 1.31 2103 10.52.97 13.47 32.87 90.5 6 1 2.5 Yes 1.26 2104 16.5 2.36 9.46 16.23 88.938.4 0.87 1.8 Yes 1.14 2105 10.64 3.05 13.87 37.40 86.7 13.3 0 0 Yes 1.342106 10.5 2.57 13.25 40.76 81.4 18.6 0. 0 Yes 1.16 2107 20.59 2.65 13.187.31 97.34 1.8 0.86 0 No 1.47 2108 8.5 2.12 9.08 92.50 95.25 4.1 0.65 0Yes 1.48 2109 0.5 1.65 9.87 17.93 82.87 16.7 0.43 0 No 1.49 2110 10.52.35 9.46 44.50 99 0.4 0.6 0 Yes 1.34 2111 11.5 1.63 9.28 96.50 89.3510.6 0.05 0 Yes 1.29 2112 36.5 2.64 9.45 16.94 93.08 6.9 0.02 0 Yes 1.18Ratio of (Zn metal grains or Zn alloy Coating detailsgrains):(Later-added Mg Total Zn metal grains) content metal Zn metalLater- of all grain Invention grains/ added Zn metal content CoatCorrosion Example Zn alloy metal grains of coat thickness Coating TestNo grains grains (Mass %) (Mass %) Base resin type (μm) method Results2091 1 18.5 0.487 83 Polyester resin 2 Spray G 2092 1 4.3 2.208 52 Epoxyresin 157 Brush E 2093 1 3.2 2.238 89 Acrylic resin 28 Brush E 2094 11.5 4.680 85 Alkyl silicate 130 Brush E 2095 1 4.5 0.764 53 Alkylsilicate 29 Brush E 2096 1 15.5 0.170 88 Epoxy resin 30 Brush E 2097 110.5 1.209 85 Acrylic resin 120 Brush E 2098 1 2.5 4.171 52 Urethaneresin 187 Brush E 2099 1 9 2.640 83 Polyester resin 28 Spray E 2100 1105 0.156 88 Epoxy resin 5 Spray E 2101 1 5.7 2.910 49 Acrylic resin 35Spray E 2102 1 3.9 0.327 50 Urethane resin 5 Spray G 2103 1 4.5 1.091 51Polyester resin 200 Brush E 2104 1 3.6 1.826 83 Alkali silicate 25 SprayE 2105 1 16.4 0.764 82 Alkali silicate 15 Spray E 2106 1 6 2.657 88Alkyl silicate 20 Spray E 2107 1 7.5 0.212 85 Alkali silicate 18 Spray E2108 1 10.5 0.357 87 Alkyl silicate 22 Spray E 2109 1 2.6 4.639 86Alkali silicate 19 Spray E 2110 1 1.5 0.160 46 Alkyl silicate 29 Spray E2111 1 13.5 0.731 49 Alkali silicate 23 Spray E 2112 1 2.6 1.917 35Alkyl silicate 21 Spray E

TABLE 108 Percent Diameter of fine- distribution grain (peak metalAverage diameter) of grains diameter Zn metal among Zn of later-grains/Zn metal Chemical component Alloy grain added Zn alloy grainsgrains/ content of Zn metal fracture Invention metal (μm) Zn alloygrains/Zn alloy grains surfaces Example grains Fine Coarse grains (Mass%) or cracks Ave No (μm) metal metal (Vol %) Zn Mg Al Si present? aspectratio 2113 1.5 2.35 9.25 88.12 99.82 0.05 0.06 0.07 Yes 1.48 2114 8.72.31 9.46 60.57 91.56 6.4 1.05 0.99 Yes 1.27 2115 7.8 2.62 9.46 39.4893.36 3.5 2.6 0.54 Yes 1.17 2116 5.96 2.52 9.46 15.82 82.13 17.5 0.050.32 Yes 1.27 2117 0.06 2.24 13.32 49.57 91.2 3.6 5.2 0 No 1.27 2118 0.90.05 6.54 86.52 94.1 5.9 0 0.001 Yes 1.48 2119 3.6 2.42 6.35 90.98 83.216.2 0 0.6 No 1.49 2120 10.5 0.11 7.54 67.32 76.7 22.5 0 0.8 Yes 1.342121 0.05 1.92 8.64 82.33 96.52 3.4 0.04 0.04 Yes 1.23 2122 2.32 0.466.45 73.76 68.3 26.5 3 2.2 Yes 1.23 2123 20.4 0.77 6.48 88.77 72.84 25.50.06 1.6 Yes 1.23 2124 8.6 2.35 9.25 45.02 87.2 12.8 0 0 Yes 1.05 212510.5 2.33 9.46 15.2 91.5 8.5 0 0 Yes 1.06 2126 8.7 1.95 9.32 51.41 75.2324.5 0.27 0 Yes 1.38 2127 7.8 2.15 9.22 45.46 77.48 18.4 2.55 1.57 Yes1.06 2128 5.96 2.23 11.62 35.19 72.62 0.08 25.5 1.8 Yes 1.49 2129 1.62.26 11.15 73.02 64.06 15.2 19.4 1.34 No 1.34 2130 7.2 1.98 9.34 93.4583 6.4 10.6 0 Yes 1.48 2131 10.5 2.02 9.58 30.66 86.4 3.2 10.4 0 No 1.492132 3.6 2.36 12.28 32.76 80.4 6.1 13.5 0.001 Yes 1.29 2133 4.5 3.0512.52 30.89 70.1 16.8 12.5 0.6 Yes 1.23 2134 7.9 2.57 11.9 45.9 60.927.5 10.8 0.8 Yes 1.23 Ratio of (Zn metal grains or Zn alloy Coatingdetails grains):(Later-added Mg Total Zn metal grains) content metal Znmetal Later- of all grain Invention grains/ added Zn metal content CoatCorrosion Example Zn alloy metal grains of coat thickness Coating TestNo grains grains (Mass %) (Mass %) Base resin type (μm) method Results2113 1 6.5 0.007 30 Alkali silicate 19 Spray E 2114 1 1.6 2.462 76 Alkylsilicate 15 Spray E 2115 1 3.8 0.729 72 Alkali silicate 18 Spray E 21161 0.08 16.204 30 Alkyl silicate 22 Spray E 2117 1 164.5 0.022 83 Alkylsilicate 21 Spray E 2118 1 3.6 1.283 75 Alkyl silicate 29 Spray E 2119 18.6 1.688 76 Alkali silicate 23 Spray E 2120 1 12 1.731 72 Alkylsilicate 21 Spray E 2121 1 5.8 0.500 83 Alkali silicate 19 Spray E 21221 10 2.409 50 Alkyl silicate 21 Spray E 2123 1 1 12.750 72 Alkalisilicate 19 Spray E 2124 1 10.5 1.113 50 Acrylic resin 654 Spray E 21251 6.5 1.133 48 Alkali silicate 700 Spray E 2126 1 19.5 1.195 75 Alkylsilicate 555 Spray E 2127 1 0.8 10.222 55 Alkyl silicate 321 Spray E2128 1 5.3 0.013 38 Alkyl silicate 152 Brush E 2129 1 4.3 2.868 48Urethane resin 674 Spray E 2130 1 3.2 1.524 76 Polyester resin 325 SprayE 2131 1 1.5 1.280 72 Alkyl silicate 665 Spray E 2132 1 4.5 1.109 75Alkyl silicate 354 Brush E 2133 1 0.8 9.333 76 Alkyl silicate 165 SprayE 2134 1 6.5 3.667 72 Urethane resin 354 Spray E

TABLE 109 Percent Diameter of fine- distribution grain (Ave metalAverage diameter) of grains diameter Zn metal among Zn of later-grains/Zn metal Chemical component Alloy grain added Zn alloy grainsgrains/ content of Zn metal fracture Invention metal (μm) Zn alloygrains/Zn alloy grains surfaces Example grains Fine Coarse grains (Mass%) or cracks No (μm) metal metal (Vol %) Zn Mg Al Si present? Ave aspectratio 2135 23.5 2.65 9.56 5.66 100 0 0 0 No — 2136 5.96 0.05 6.5 16.55100 0 0 0 No — 2137 10.64 4.6 65.5 21.55 100 0 0 0 No — 2138 16.5 3.5613.5 5.66 100 0 0 0 No — 2139 7.95 4.55 16.7 33.66 100 0 0 0 No — 21407.95 2.15 9.89 45.65 100 0 0 0 No — 2141 9.64 3.22 10.55 49.88 100 0 0 0No — 2142 0.96 2.99 9.64 42.33 100 0 0 0 No — 2143 5.26 3.65 11.22 65.44100 0 0 0 No — 2144 13.5 4.55 13.5 77.55 100 0 0 0 No — 2145 13.5 3.5722.5 96.55 100 0 0 0 No — 2146 9.64 1.99 8.56 5.97 100 0 0 0 No — 214716.5 2.12 9.46 87.77 100 0 0 0 No — 2148 20.59 2.45 11.1 86.55 100 0 0 0No — 2149 0.96 1.85 8.92 15.67 100 0 0 0 No — 2150 6.54 1.65 9.23 31.55100 0 0 0 No — 2151 5.26 2.45 9.05 26.76 100 0 0 0 No — 2152 10.64 2.0110.91 67.89 100 0 0 0 No — 2153 9.64 1.99 11.12 56.89 100 0 0 0 No —2154 6.9 2.38 10.93 45.67 100 0 0 0 No — 2155 10.5 2.49 9.34 34.67 100 00 0 No — Ratio of (Zn metal grains or Zn alloy Coating detailsgrains):(Later-added Mg Total Zn metal grains) content metal Zn metalLater- of all grain Invention grains/ added Zn metal content CoatCorrosion Example Zn alloy metal grains of coat thickness Coating TestNo grains grains (Mass %) (Mass %) Base resin type (μm) method Results2135 1 299.5 — 35 Alkali silicate 2 Spray G 2136 1 12.5 — 66 Alkylsilicate 37 Spray E 2137 1 3.5 — 38 Alkali silicate 12 Spray E 2138 11.4 — 84 Alkyl silicate 160 Brush E 2139 1 6.8 — 39 Alkali silicate 5Brush G 2140 1 136.5 — 85 Alkyl silicate 12 Brush E 2141 1 14.5 — 36Alkali silicate 2 Spray G 2142 1 0.08 — 56 Alkyl silicate 18 Spray E2143 1 1.6 — 42 Alkyl silicate 23 Spray E 2144 1 3.9 — 31 Epoxy resin 30Brush E 2145 1 10.5 — 88 Acrylic resin 77 Brush E 2146 1 4.9 — 78Urethane resin 254 Brush E 2147 1 33.5 — 36 Polyester resin 47 Spray E2148 1 2.5 — 37 Epoxy resin 43 Spray E 2149 1 1.9 — 45 Acrylic resin 322Brush E 2150 1 7.1 — 68 Urethane resin 20 Brush E 2151 1 9.4 — 79Polyester resin 700 Brush E 2152 1 16.8 — 47 Alkali silicate 22 Spray E2153 1 75.5 — 56 Alkyl silicate 25 Spray E 2154 1 4.5 — 37 Alkalisilicate 14 Spray E 2155 1 0.9 — 90 Urethane resin 112 Spray E

TABLE 110 Percent Diameter of fine- distribution grain (Ave metalAverage diameter) of grains diameter Zn metal among Zn Alloy of later-grains/Zn metal Chemical component grain added Zn alloy grains grains/content of Zn metal fracture Invention metal (μm) Zn alloy grains/Znalloy grains surfaces Example grains Fine Coarse grains (Mass %) orcracks No (μm) metal metal (Vol %) Zn Mg Al Si present? Ave aspect ratio2156 13.5 2.34 8.77 95.66 100 0 0 0 No — 2157 20.59 3.99 27.6 34.21 1000 0 0 No — 2158 7.82 1.02 21.9 7.88 100 0 0 0 No — 2159 5.26 0.05 22.592.32 100 0 0 0 No — 2160 7.06 2.01 17.5 11.22 100 0 0 0 No — 2161 0.641.51 6.99 55.66 100 0 0 0 No — 2162 46.8 2.38 7.65 78.99 100 0 0 0 No —2163 9.64 1.99 8.56 5.97 100 0 0 0 No — 2164 16.5 2.49 9.34 34.67 100 00 0 No — 2165 20.59 1.02 21.9 7.88 100 0 0 0 No — 2166 16..5 2.35 9.2535.87 88.8 11.2 0 0 Yes 1.12 2167 13.5 2.57 9.56 42.04 90.6 9.4 0 0 No1.38 2168 0.96 2.56 9.84 6.55 81.45 18.5 0 0.05 Yes 1.22 2169 0.96 2.219.75 43.60 99.97 0.03 0 0 Yes 1.14 2170 8.45 2.64 9.85 44.12 98.4 1.6 00 No 1.02 2171 2.9 1.99 8.56 37.21 93.2 6.8 0 0 Yes 1.05 2172 5.4 2.948.21 43.38 84.5 13.9 0 1.6 No 1.36 2173 10.6 2.58 8.33 13.52 98.1 1.9 00 Yes 1.11 2174 2.32 2.37 8 44.94 94.3 5.7 0 0 No 1.07 2175 7.8 2.159.22 45.46 90.8 9.2 0 0 No 1.42 2176 7.95 2.96 9.36 35.96 83.3 15.4 01.3 Yes 1.38 Ratio of (Zn metal grains or Zn alloy Coating detailsgrains):(Later-added Mg Total Zn metal grains) content metal Zn metalLater- of all grain Invention grains/ added Zn metal content CoatCorrosion Example Zn alloy metal grains of coat thickness Coating TestNo grains grains (Mass %) (Mass %) Base resin type (μm) method Results2156 1 3.2 — 43 Alkali silicate 554 Spray E 2157 1 5.2 — 38 Urethaneresin 150 Spray E 2158 1 1.6 — 56 Alkali silicate 18 Spray E 2159 1 85.5— 89 Alkyl silicate 657 Brush E 2160 1 52.2 — 32 Alkyl silicate 24 SprayE 2161 1 3.6 — 55 Urethane resin 99 Spray E 2162 1 1.7 — 79 Alkylsilicate 7 Spray E 2163 1 4.9 — 78 Epoxy resin 100 Spray E 2164 1 33.5 —77 Alkyl silicate 27 Brush E 2165 1 2.5 — 56 Alkali silicate 15 Spray E2166 1 5 1.867 49 Alkyl silicate 14 Spray E 2167 1 198.7 0.047 89Urethane resin 55 Spray E 2168 1 36 0.500 90 Alkyl silicate 8 Spray E2169 1 1.5 0.012 86 Urethane resin 122 Brush E 2170 1 0.008 1.587 48Alkyl silicate 555 Spray E 2171 1 1.4 2.833 47 Alkali silicate 19 SprayE 2172 1 4.2 2.673 47 Alkyl silicate 25 Brush E 2173 1 1.6 0.731 47Alkyl silicate 58 Spray E 2174 1 7.5 0.671 52 Alkyl silicate 685 Spray E2175 1 1.6 3.538 52 Alkali silicate 19 Brush E 2176 1 2 5.133 52Urethane resin 700 Spray E

TABLE 111 Percent Diameter of fine- distribution grain (Ave metalAverage diameter) of grains diameter Zn metal among Zn of later-grains/Zn metal Chemical component Alloy grain added Zn alloy grainsgrains/ content of Zn metal fracture Invention metal (μm) Zn alloygrains/Zn alloy grains surfaces Example grains Fine Coarse grains (Mass%) or cracks Ave No (μm) metal metal (Vol %) Zn Mg Al Si present? aspectratio 2177 20.59 2.85 9.45 42.13 79.84 18.6 0 1.56 Yes 1.22 2178 22.52.94 9.61 7.56 96.4 3.6 0 0 Yes 1.14 2179 4.6 2.11 9.85 43.69 94.6 5.4 00 Yes 1.13 2180 4.9 2.68 9.23 44.21 92.4 7.6 0 0 Yes 1.02 2181 10.5 2.999.08 39.51 75.5 24.5 0 0 Yes 1.06 2182 8.45 2.78 9.87 45.68 82.4 17.6 00 Yes 1.05 2183 30.5 2.96 9.46 65.58 98.6 1.4 0 0 Yes 1.24 2184 49.52.85 9.28 47.24 78.5 21.5 0 0 Yes 1.33 2185 5.9 2.64 9.45 47.76 89.610.4 0 0 Yes 1.27 2186 4.52 2.35 9.25 45.02 87.2 12.8 0 0 Yes 1.05 21875.96 2.12 9.46 47.02 92.2 7.8 0 0 Yes 1.22 2188 5.5 2.34 9.46 7.66 70.529.5 0 0 Yes 1.13 2189 3.6 2.33 9.46 15.20 91.5 8.5 0 0 Yes 1.06 219016.5 2.23 9.06 43.16 74.5 25.5 0 0 Yes 1.05 2191 12.5 2.12 9.3 49.3399.93 0.07 0 0 Yes 1.24 2192 16.5 2.21 8.68 19.47 89.2 10.8 0 0 No 1.052193 10.9 1.38 8.53 69.55 86 11.2 1.6 1.2 No 1.12 2194 5.6 1.95 9.3251.41 75.23 24.5 0.27 0 Yes 1.38 2195 22.6 2.26 8.95 75.88 82.6 17.4 0 0Yes 1.13 2196 20.59 2.05 12.54 48.08 98.7 1.3 0 0 Yes 1.33 2197 20.591.65 8.7 66.85 80.5 19.5 0 0 Yes 1.27 Ratio of (Zn metal grains or Znalloy Coating details grains):(Later-added Mg Total Zn metal grains)content metal Zn metal Later- of all grain Invention grains/ added Znmetal content Coat Corrosion Example Zn alloy metal grains of coatthickness Coating Test No grains grains (Mass %) (Mass %) Base resintype (μm) method Results 2177 1 270 0.069 88 Alkyl silicate 77 Spray E2178 1 7.5 0.424 87 Alkyl silicate 54 Spray E 2179 1 2.9 1.385 89 Alkylsilicate 64 Spray E 2180 1 2.6 2.111 90 Alkyl silicate 34 Brush E 2181 10.1 22.273 91 Alkali silicate 28 Spray E 2182 1 1.2 8.000 46 Urethaneresin 109 Brush E 2183 1 1.2 0.636 47 Alkyl silicate 15 Spray E 2184 162 0.341 47 Alkyl silicate 14 Spray E 2185 1 2.4 3.059 49 Alkyl silicate18 Spray E 2186 1 2.1 4.129 50 Alkali silicate 2 Spray G 2187 1 34.50.220 87 Alkyl silicate 37 Spray E 2188 1 270 0.109 83 Alkali silicate12 Spray E 2189 1 32.5 0.254 48 Alkyl silicate 160 Brush E 2190 1 36.375 51 Alkali silicate 5 Brush G 2191 1 1.5 0.028 51 Alkyl silicate 56Brush E 2192 1 7.5 1.271 87 Alkali silicate 2 Spray G 2193 1 13.5 0.77285 Alkyl silicate 18 Spray E 2194 1 5 4.083 86 Alkyl silicate 23 Spray E2195 1 5 2.900 50 Epoxy resin 30 Brush E 2196 1 1 0.650 51 Acrylic resin77 Brush E 2197 1 120 0.161 51 Urethane resin 655 Brush E

TABLE 112 Percent Diameter of fine- distribution grain (Ave metalAverage diameter) of grains diameter Zn metal among Zn of later-grains/Zn metal Chemical component Alloy grain added Zn alloy grainsgrains/ content of Zn metal fracture Invention metal (μm) Zn alloygrains/Zn alloy grains surfaces Example grains Fine Coarse grains (Mass%) or cracks Ave No (μm) metal metal (Vol %) Zn Mg Al Si present? aspectratio 2198 9.56 2.35 8.55 7.68 88.85 10.8 0.05 0.3 No 1.23 2199 5.9 1.628.91 8.64 87.7 11.9 0.4 0 Yes 1.11 2200 6.54 1.88 9.91 16.58 90.5 9.5 00 Yes 1.42 2201 21.4 2.35 9.25 35.87 89.5 10.5 0 0 Yes 1.06 2202 9.82.57 9.56 42.04 84.9 15.1 0 0 Yes 1.05 2203 6.59 2.56 9.84 38.41 83.216.8 0 0 Yes 1.07 2204 6.54 2.21 9.75 6.99 89.4 10.6 0 0 Yes 1.42 220516.5 2.64 9.85 44.12 84.3 13.3 2.4 0 Yes 1.38 2206 7.8 2.65 8.56 66.9998.6 1.4 0 0 No 1.22 2207 16.5 2.94 8.21 43.38 76.45 23.5 0 0.05 Yes1.14 2208 6.54 2.58 8.33 39.75 91.1 8.9 0 0 Yes 1.13 2209 8.45 2.37 865.38 85.1 14.9 0 0 Yes 1.02 2210 8.5 2.15 9.22 45.46 77.48 18.4 2.551.57 Yes 1.06 2211 13.6 2.96 9.36 22.55 97.9 2.1 0 0 Yes 1.05 2212 12.332.85 9.45 42.13 94.8 5.2 0 0 Yes 1.24 2213 16.5 2.94 9.61 38.50 84.615.4 0 0 Yes 1.33 2214 7.9 2.11 9.85 64.13 89.3 10.7 0 0 Yes 1.27 221510.5 2.68 9.23 44.21 83.3 16.7 0 0 Yes 1.05 2216 16.5 2.99 9.08 39.5180.05 19.6 0.35 0 No 1.12 2217 10.64 1.82 9.87 78.64 85.5 14.5 0 0 No1.23 2218 10.5 1.42 9.46 42.05 85 14.2 0 0.8 No 1.36 Ratio of (Zn metalgrains or Zn alloy Coating details grains):(Later-added Mg Total Znmetal grains) content metal Zn metal Later- of all grain Inventiongrains/ added Zn metal content Coat Corrosion Example Zn alloy metalgrains of coat thickness Coating Test No grains grains (Mass %) (Mass %)Base resin type (μm) method Results 2198 1 3.7 2.298 80 Polyester resin47 Spray E 2199 1 6.1 1.676 46 Epoxy resin 43 Spray E 2200 1 198.5 0.04851 Acrylic resin 52 Brush E 2201 1 2.5 3.000 86 Urethane resin 20 BrushE 2202 1 18.5 0.774 85 Polyester resin 200 Brush E 2203 1 8 1.867 82Alkali silicate 22 Spray E 2204 1 1.6 4.077 81 Alkyl silicate 25 Spray E2205 1 1.2 6.045 46 Alkali silicate 14 Spray E 2206 1 0.5 0.933 47Urethane resin 112 Spray E 2207 1 9 2.350 48 Alkali silicate 24 Spray E2208 1 4.5 1.618 51 Urethane resin 150 Spray E 2209 1 136 0.109 53Alkali silicate 18 Spray E 2210 1 13 1.314 88 Alkyl silicate 19 Brush E2211 1 10.6 0.181 85 Alkyl silicate 24 Spray E 2212 1 1.6 2.000 83Urethane resin 99 Spray E 2213 1 68 0.223 82 Alkyl silicate 7 Spray E2214 1 4.5 1.945 83 Epoxy resin 100 Spray E 2215 1 10.5 1.452 47 Alkylsilicate 27 Brush E 2216 1 4.9 3.322 51 Alkali silicate 15 Spray E 22171 10.5 1.261 52 Alkyl silicate 14 Spray E 2218 1 192 0.074 51 Urethaneresin 55 Spray E

TABLE 113 Percent Diameter of fine- distribution grain Ratio of (Zn (Avemetal metal grains or Average diameter) of grains Zn alloygrains):(Later- diameter Zn metal among Zn Alloy added of later-grains/Zn metal Chemical component grain Zn metal grains) added Zn alloygrains grains/ content of Zn metal fracture Zn metal Later- Inventionmetal (μm) Zn alloy grains/Zn alloy grains surfaces Ave grains/ added ZnExample grains Fine Coarse grains (Mass %) or cracks aspect Zn alloymetal No (μm) metal metal (Vol %) Zn Mg Al Si present? ratio grainsgrains 2219 20.59 2.12 9.28 64.58 87.3 12.7 0 0 No 1.11 1 0.07 2220 8.51.92 9.45 47.76 89.5 10.5 0 0 Yes 1.07 1 9.5 2221 0.5 2.11 9.63 24.1087.3 11.8 0 0.9 Yes 1.42 1 2.6 2222 10.5 2.97 9.16 39.11 86.4 12.8 0.50.3 Yes 1.38 1 4.5 2223 11.5 2.36 10.39 19.65 93.8 6.2 0 0 Yes 1.22 1 32224 36.5 3.05 10.56 65.39 83.8 16.2 0 0 Yes 1.14 1 7.5 2225 1.5 2.1510.74 48.57 80.4 19.6 0 0 Yes 1.13 1 77 2226 8.7 2.19 10.27 24.91 87.612.4 0 0 Yes 1.02 1 10.5 2227 7.8 2.48 11.5 39.92 89.3 10.7 0 0 Yes 1.061 15.5 2228 5.96 2.85 11.67 22.65 91.5 8.5 0 0 Yes 1.05 1 5.8 2229 0.062.75 11.85 66.20 94.9 5.1 0 0 Yes 1.24 1 1.9 2230 0.9 2.46 11.38 49.3875.5 24.5 0 0 Yes 1.33 1 16.9 2231 3.6 2.71 12.61 30.58 86.5 13.5 0 0Yes 1.27 1 1.5 2232 10.5 2.36 12.78 45.59 80 20 0 0 Yes 1.05 1 0.05 22330.05 2.16 9.57 28.32 84.5 15.5 0 0 Yes 1.12 1 215 2234 2.32 2.46 9.8171.87 88 10.5 1.5 0 Yes 1.23 1 4.2 2235 20.4 2.49 8.43 53.05 92.1 7.9 00 Yes 1.36 1 1.5 2236 7.34 2.95 8.55 27.74 95.2 4.8 0 0 Yes 1.11 1 4.82237 9.4 2.36 8.22 42.75 81.6 18.4 0 0 Yes 1.07 1 0.5 2238 23.43 2.219.44 23.29 86.8 12.7 0 0.5 Yes 1.42 1 2.3 2239 5.96 2.25 9.58 61.12 89.710.3 0 0 No 1.38 1 0.05 Coating details Mg Total content metal of allgrain Invention metal content Coat Example grains of coat thicknessCoating Corrosion No (Mass %) (Mass %) Base resin type (μm) method TestResults 2219 11.869 52 Alkyl silicate 8 Spray E 2220 1.000 89 Urethaneresin 122 Brush E 2221 3.278 85 Alkyl silicate 54 Spray E 2222 2.327 82Alkali silicate 19 Spray E 2223 1.550 87 Alkyl silicate 25 Brush E 22241.906 88 Alkyl silicate 58 Spray E 2225 0.251 49 Alkyl silicate 21 SprayE 2226 1.078 50 Alkali silicate 19 Brush E 2227 0.648 51 Urethane resin56 Spray E 2228 1.250 52 Alkyl silicate 77 Spray E 2229 1.759 53 Alkylsilicate 12 Spray E 2230 1.369 88 Alkyl silicate 64 Spray E 2231 5.40085 Alkyl silicate 34 Brush E 2232 19.048 83 Alkali silicate 28 Spray E2233 0.072 81 Urethane resin 109 Brush E 2234 2.019 80 Alkyl silicate 15Spray E 2235 3.160 47 Alkyl silicate 14 Spray E 2236 0.828 49 Alkylsilicate 18 Spray E 2237 12.267 50 Urethane resin 122 Brush E 2238 3.84851 Alkyl silicate 54 Spray E 2239 9.810 52 Alkali silicate 19 Spray E

TABLE 114 Percent Diameter of fine- distribution grain Ratio of (Zn (Avemetal metal grains or Average diameter) of grains Zn alloygrains):(Later- diameter Zn metal among Zn Alloy added of later-grains/Zn metal Chemical component grain Zn metal grains) added Zn alloygrains grains/ content of Zn metal fracture Zn metal Later- Inventionmetal (μm) Zn alloy grains/Zn alloy grains surfaces Ave grains/ added ZnExample grains Fine Coarse grains (Mass %) or cracks aspect Zn alloymetal No (μm) metal metal (Vol %) Zn Mg Al Si present? ratio grainsgrains 2240 10.64 2.44 9.67 44.30 71.2 20.8 8 0 Yes 1.22 1 120 2241 16.52.78 9.83 23.96 97.5 2.5 0 0 No 1.14 1 3.7 2242 7.95 2.15 10.07 44.0984.8 15.2 0 0 Yes 1.13 1 16.5 2243 7.95 2.19 9.45 24.63 80.8 19.2 0 0 No1.02 1 24 2244 9.64 2.48 9.3 62.46 78.7 13.5 7.8 0 Yes 1.06 1 0.01 22450.96 2.59 9.99 45.64 88.1 11.9 0 0 No 1.05 1 7.8 2246 5.26 2.47 9.5825.30 88.5 10.6 0 0.9 Yes 1.24 1 1.6 2247 13.5 2.69 9.4 42.84 84.6 15.40 0 Yes 1.33 1 3.2 2248 13.5 2.57 9.57 25.44 97.4 2.6 0 0 Yes 1.27 1 5.42249 9.64 2.49 9.54 63.27 83.3 16.7 0 0 Yes 1.37 1 220 2250 16.5 2.689.58 46.45 91.9 8.1 0 0 Yes 1.10 1 2.2 2251 20.59 2.35 9.25 46.45 86.313.7 0 0 Yes 1.04 1 2.8 2252 0.96 2.48 10.04 50.91 81.5 18.5 0 0 Yes1.02 1 12 2253 6.54 2.13 11.27 27.25 97.6 2.4 0 0 Yes 1.01 1 10.6 22545.26 1.93 11.44 42.26 89.1 10.9 0 0 Yes 1.08 1 35 2255 10.64 2.05 8.933.69 92.8 7.2 0 0 Yes 1.14 1 125.5 2256 9.64 1.42 8.75 48.70 81.96 17.50.5 0.04 No 1.23 1 6 2257 6.9 1.46 9.44 29.24 85.4 14.6 0 0 No 1.33 1 342258 10.5 1.75 9.03 67.07 90.6 9.4 0 0 Yes 1.37 1 1.6 2259 13.5 1.868.85 50.25 92.9 7.1 0 0 Yes 1.44 1 7.5 2260 20.59 1.74 8.95 29.91 77.522.5 0 0 Yes 1.21 1 200 Coating details Mg Total content metal of allgrain Invention metal content Coat Example grains of coat thicknessCoating Corrosion No (Mass %) (Mass %) Base resin type (μm) method TestResults 2240 0.172 83 Alkyl silicate 25 Brush E 2241 0.532 88 Alkylsilicate 58 Spray E 2242 0.869 85 Alkyl silicate 21 Spray E 2243 0.76883 Alkali silicate 19 Brush E 2244 13.366 82 Urethane resin 56 Spray E2245 1.352 47 Alkyl silicate 77 Spray E 2246 4.077 46 Alkyl silicate 54Spray E 2247 3.667 49 Alkali silicate 2 Spray G 2248 0.406 50 Alkalisilicate 20 Spray E 2249 0.076 51 Alkali silicate 5 Spray G 2250 2.53183 Alkyl silicate 20 Spray E 2251 3.605 82 Alkali silicate 15 Brush E2252 1.423 88 Alkyl silicate 57 Brush E 2253 0.207 85 Alkali silicate 13Brush E 2254 0.303 86 Alkyl silicate 22 Brush E 2255 0.057 47 Alkalisilicate 20 Spray E 2256 2.500 48 Alkyl silicate 27 Spray E 2257 0.41750 Alkali silicate 15 Spray E 2258 3.615 51 Alkyl silicate 35 Spray E2259 0.835 52 Alkali silicate 34 Brush E 2260 0.112 88 Alkyl silicate 45Brush E

TABLE 115 Percent Diameter of fine- distribution grain Ratio of (Zn (Avemetal metal grains or Average diameter) of grains Zn alloygrains):(Later- diameter Zn metal among Zn Alloy added of later-grains/Zn metal Chemical component grain Zn metal grains) added Zn alloygrains grains/ content of Zn metal fracture Zn metal Later- Inventionmetal (μm) Zn alloy grains/Zn alloy grains surfaces Ave grains/ added ZnExample grains Fine Coarse grains (Mass %) or cracks aspect Zn alloymetal No (μm) metal metal (Vol %) Zn Mg Al Si present? ratio grainsgrains 2261 7.82 1.96 12.54 87.50 84.8 13.7 1.5 0 No 1.22 1 7.5 22625.26 1.65 8.7 30.58 87.1 12.9 0 0 No 1.23 1 3.2 2263 7.06 2.35 8.5568.41 95.7 4.3 0 0 Yes 1.47 1 2.6 2264 0.64 1.62 10.72 54.59 80.2 17.6 11.2 No 1.01 1 3 2265 46.8 2.25 9.9 34.25 98.8 0.6 0.6 0 Yes 1.04 1 15.22266 16.5 2.36 9.57 37.61 86.9 10.3 1.6 1.2 Yes 1.05 1 0.09 2267 13.52.24 10.79 45.60 92.98 7 0.02 0 Yes 1.12 1 13.5 2268 0.96 2.46 10.9346.70 75.5 23.5 1 0 Yes 1.11 1 135.4 2269 0.96 1.56 11.02 41.22 82.517.5 0 0 No 1.08 1 3 2270 8.45 1.24 11.18 45.68 80.1 12.4 7.5 0 Yes 1.471 7.8 2271 2.9 1.68 11.42 22.02 85.09 14.9 0 0.01 Yes 1.50 1 10.2 22725.4 2.65 10.8 37.03 78.7 20.7 0 0.6 No 1.13 1 7 2273 10.6 2.22 10.6528.46 91.29 8.6 0 0.11 Yes 1.26 1 225.2 2274 2.32 2.45 11.34 43.47 85.814.2 0 0 Yes 1.14 1 5.4 2275 7.8 2.23 11.62 35.19 98.12 0.08 0 1.8 Yes1.49 1 3.2 2276 7.95 2.26 11.15 73.02 83.46 15.2 0 1.34 No 1.34 1 13.52277 20.59 2.72 12.38 56.20 73.17 17.4 9 0.43 Yes 1.18 1 1.6 2278 22.52.13 12.55 35.86 98.6 0.8 0.6 0 Yes 1.17 1 1.5 2279 4.6 1.98 9.34 93.4593.55 6.4 0.05 0 Yes 1.48 1 2.5 2280 4.9 2.02 9.58 30.66 96.78 3.2 0.020 No 1.49 1 2.6 2281 10.5 2.21 9.88 74.21 83 9.2 7.8 0 Yes 1.27 1 126Coating details Mg Total content metal of all grain Invention metalcontent Coat Example grains of coat thickness Coating Corrosion No (Mass%) (Mass %) Base resin type (μm) method Test Results 2261 1.612 89Alkali silicate 52 Brush E 2262 3.071 86 Alkyl silicate 23 Brush E 22631.194 87 Alkali silicate 5 Spray E 2264 4.400 86 Alkyl silicate 52 BrushE 2265 0.037 46 Alkali silicate 150 Brush E 2266 9.450 49 Alkyl silicate60 Brush E 2267 0.483 35 Alkali silicate 15 Spray E 2268 0.172 37 Alkylsilicate 24 Spray E 2269 4.375 36 Alkali silicate 34 Spray E 2270 1.40938 Alkyl silicate 20 Brush E 2271 1.330 48 Alkali silicate 200 Brush E2272 2.588 46 Alkyl silicate 56 Brush E 2273 0.038 51 Alkali silicate 34Spray E 2274 2.219 46 Alkyl silicate 2 Spray G 2275 0.019 38 Alkalisilicate 15 Spray E 2276 1.048 48 Alkali silicate 10 Spray E 2277 6.69252 Alkyl silicate 125 Brush E 2278 0.320 30 Alkali silicate 24 Brush E2279 1.829 76 Alkyl silicate 110 Brush E 2280 0.889 72 Alkali silicate24 Brush E 2281 0.072 81 Alkyl silicate 2 Spray G

TABLE 116 Percent Diameter of fine- distribution grain Ratio of (Zn (Avemetal metal grains or Average diameter) of grains Zn alloygrains):(Later- diameter Zn metal among Zn Alloy added of later-grains/Zn metal Chemical component grain Zn metal grains) added Zn alloygrains grains/ content of Zn metal fracture Zn metal Later- Inventionmetal (μm) Zn alloy grains/Zn alloy grains surfaces Ave grains/ added ZnExample grains Fine Coarse grains (Mass %) or cracks aspect Zn alloymetal No (μm) metal metal (Vol %) Zn Mg Al Si present? ratio grainsgrains 2282 8.45 2.55 10 55.39 70.92 19.2 9.88 0 Yes 1.17 1 120 228330.5 1.92 10.67 30.08 80.25 15.1 4.65 0 Yes 1.16 1 7.5 2284 49.5 1.9611.89 45.09 81.85 14.5 3.65 0 Yes 1.27 1 6.5 2285 5.9 2.11 12.03 41.4189.45 10.5 0.05 0 Yes 1.27 1 20 2286 4.52 2.97 12.12 17.75 87.3 7.5 5.20 Yes 1.49 1 0.007 2287 5.96 2.36 12.28 32.76 93.9 6.1 0 0.001 Yes 1.291 9 2288 5.5 3.05 12.52 30.89 82.55 16.8 0.05 0.6 Yes 1.23 1 7.5 22893.6 2.57 11.9 45.90 70.7 27.5 1 0.8 Yes 1.23 1 50 2290 16.5 2.65 11.7542.22 94.6 2.9 0 2.5 Yes 1.23 1 0.005 2291 12.5 2.54 12.44 18.56 94 4.50 1.5 No 1.23 1 25.6 2292 16.5 2.85 12.03 33.57 99.43 0.07 0 0.5 Yes1.27 1 56.5 2293 10.9 2.75 10.61 31.70 96.82 3.1 0.04 0.04 Yes 1.23 11.6 2294 5.6 2.46 11.3 46.71 76.3 20.5 1 2.2 Yes 1.36 1 3 2295 22.6 2.7111.58 47.89 68.84 29.5 0.06 1.6 Yes 1.11 1 100 2296 20.59 2.36 11.1124.23 92.33 7.6 0.07 0 Yes 1.02 1 65.5 2297 20.59 2.16 12.34 39.24 95.20.7 1.2 2.9 Yes 1.05 1 1.9 2298 9.56 2.46 12.51 37.37 91.8 4.6 1.8 1.8Yes 1.24 1 2.1 2299 5.9 2.49 11.64 50.38 82 8.3 9.2 0.5 Yes 1.33 1 10.52300 6.54 1.63 9.16 37.14 88.2 11.8 0 0 Yes 1.27 1 6.5 2301 21.4 1.519.46 13.48 86.06 12.9 0 1.04 Yes 1.50 1 19.5 2302 9.8 3.05 9.54 40.0599.34 0.6 0 0.06 Yes 1.13 1 0.8 Coating details Mg Total content metalof all grain Invention metal content Coat Example grains of coatthickness Coating Corrosion No (Mass %) (Mass %) Base resin type (μm)method Test Results 2282 0.159 64 Alkali silicate 37 Spray E 2283 1.77669 Alkyl silicate 113 Brush E 2284 1.933 83 Alkali silicate 2 Spray G2285 0.500 30 Alkyl silicate 75 Brush E 2286 7.448 83 Alkali silicate 30Brush E 2287 0.610 75 Alkyl silicate 34 Brush E 2288 1.976 76 Epoxyresin 124 Brush E 2289 0.539 72 Acrylic resin 15 Spray E 2290 2.886 71Urethane resin 23 Spray E 2291 0.169 82 Polyester resin 157 Brush E 22920.001 81 Epoxy resin 26 Spray E 2293 1.192 83 Acrylic resin 38 Spray E2294 5.125 50 Urethane resin 160 Brush E 2295 0.292 72 Polyester resin27 Brush E 2296 0.114 47 Epoxy resin 180 Brush E 2297 0.241 47 Acrylicresin 26 Spray E 2298 1.484 52 Urethane resin 180 Brush E 2299 0.722 52Polyester resin 15 Spray E 2300 1.573 50 Epoxy resin 2 Spray G 23010.629 46 Acrylic resin 28 Spray E 2302 0.333 47 Urethane resin 30 SprayE

TABLE 117 Percent Diameter of fine- distribution grain Ratio of (Zn (Avemetal metal grains or Average diameter) of grains Zn alloygrains):(Later- diameter Zn metal among Zn Alloy added of later-grains/Zn metal Chemical component grain Zn metal grains) added Zn alloygrains grains/ content of Zn metal fracture Zn metal Later- Inventionmetal (μm) Zn alloy grains/Zn alloy grains surfaces Ave grains/ added ZnExample grains Fine Coarse grains (Mass %) or cracks aspect Zn alloymetal No (μm) metal metal (Vol %) Zn Mg Al Si present? ratio grainsgrains 2303 6.59 2.57 9.56 38.18 89.51 9.5 0 0.99 No 1.04 1 18.5 23046.54 2.65 9.46 7.63 88.3 11.7 0 0 Yes 1.02 1 4.3 2305 16.5 2.54 11.9937.95 89.9 9.4 0.7 0 Yes 1.08 1 3.2 2306 7.8 2.85 12.08 14.29 87.8 11.70.5 0 Yes 1.15 1 1.5 2307 16.5 2.75 12.24 40.86 95.6 4.2 0.2 0 Yes 1.341 4.5 2308 6.54 2.46 12.48 97.50 97.13 2.8 0.07 0 Yes 1.25 1 15.5 23098.45 2.71 11.86 13.30 86.1 13.9 0 0 Yes 1.19 1 10.5 2310 8.5 2.36 11.7143.62 82.6 14.6 1.6 1.2 No 1.18 1 2.5 2311 13.6 2.46 11.35 56.93 72.9526.4 0.65 0 Yes 1.24 1 9 2312 12.33 1.45 12.02 36.59 83.23 16.5 0.27 0Yes 1.11 1 105 2313 16.5 2.42 13.24 39.95 79.4 19.5 0.45 0.65 Yes 1.27 15.7 2314 7.9 2.11 9.46 86.50 97.08 1.6 0.33 0.99 Yes 1.31 1 3.9 231510.5 2.97 13.47 32.87 90.5 6 1 2.5 Yes 1.26 1 4.5 2316 16.5 2.36 9.4616.23 88.93 8.4 0.87 1.8 Yes 1.14 1 3.6 2317 10.64 3.05 13.87 37.40 86.713.3 0 0 Yes 1.34 1 16.4 2318 10.5 2.57 13.25 40.76 81.4 18.6 0. 0 Yes1.16 1 6 2319 20.59 2.65 13.1 87.31 97.34 1.8 0.86 0 No 1.47 1 7.5 23208.5 2.12 9.08 92.50 95.25 4.1 0.65 0 Yes 1.48 1 10.5 2321 0.5 1.65 9.8717.93 82.87 16.7 0.43 0 No 1.49 1 2.6 2322 10.5 2.35 9.46 44.50 99 0.40.6 0 Yes 1.34 1 1.5 2323 11.5 1.63 9.28 96.50 89.35 10.6 0.05 0 Yes1.29 1 13.5 2324 36.5 2.64 9.45 16.94 93.08 6.9 0.02 0 Yes 1.18 1 2.6Coating details Mg Total content metal of all grain Invention metalcontent Coat Example grains of coat thickness Coating Corrosion No (Mass%) (Mass %) Base resin type (μm) method Test Results 2303 0.487 83Polyester resin 2 Spray G 2304 2.208 52 Epoxy resin 157 Brush E 23052.238 89 Acrylic resin 28 Brush E 2306 4.680 85 Alkyl silicate 130 BrushE 2307 0.764 53 Alkyl silicate 29 Brush E 2308 0.170 88 Epoxy resin 30Brush E 2309 1.209 85 Acrylic resin 120 Brush E 2310 4.171 52 Urethaneresin 187 Brush E 2311 2.640 83 Polyester resin 28 Spray E 2312 0.156 88Epoxy resin 5 Spray E 2313 2.910 49 Acrylic resin 35 Spray E 2314 0.32750 Urethane resin 5 Spray G 2315 1.091 51 Polyester resin 200 Brush E2316 1.826 83 Alkali silicate 25 Spray E 2317 0.764 82 Alkali silicate15 Spray E 2318 2.657 88 Alkyl silicate 20 Spray E 2319 0.212 85 Alkalisilicate 18 Spray E 2320 0.357 87 Alkyl silicate 22 Spray E 2321 4.63986 Alkali silicate 19 Spray E 2322 0.160 46 Alkyl silicate 29 Spray E2323 0.731 49 Alkali silicate 23 Spray E 2324 1.917 35 Alkyl silicate 21Spray E

TABLE 118 Percent Diameter of fine- distribution grain Ratio of (Zn (Avemetal metal grains or Average diameter) of grains Zn alloygrains):(Later- diameter Zn metal among Zn Alloy added of later-grains/Zn metal Chemical component grain Zn metal grains) added Zn alloygrains grains/ content of Zn metal fracture Zn metal Later- Inventionmetal (μm) Zn alloy grains/Zn alloy grains surfaces Ave grains/ added ZnExample grains Fine Coarse grains (Mass %) or cracks aspect Zn alloymetal No (μm) metal metal (Vol %) Zn Mg Al Si present? ratio grainsgrains 2325 1.5 2.35 9.25 88.12 99.82 0.05 0.06 0.07 Yes 1.48 1 6.5 23268.7 2.31 9.46 60.57 91.56 6.4 1.05 0.99 Yes 1.27 1 1.6 2327 7.8 2.629.46 39.48 93.36 3.5 2.6 0.54 Yes 1.17 1 3.8 2328 5.96 2.52 9.46 15.8282.13 17.5 0.05 0.32 Yes 1.27 1 0.08 2329 0.06 2.24 13.32 49.57 91.2 3.65.2 0 No 1.27 1 164.5 2330 0.9 0.05 6.54 86.52 94.1 5.9 0 0.001 Yes 1.481 3.6 2331 3.6 2.42 6.35 90.98 83.2 16.2 0 0.6 No 1.49 1 8.6 2332 10.50.11 7.54 67.32 76.7 22.5 0 0.8 Yes 1.34 1 12 2333 0.05 1.92 8.64 82.3396.52 3.4 0.04 0.04 Yes 1.23 1 5.8 2334 2.32 0.46 6.45 73.76 68.3 26.5 32.2 Yes 1.23 1 10 2335 20.4 0.77 6.48 88.77 72.84 25.5 0.06 1.6 Yes 1.231 1 2336 8.6 2.35 9.25 45.02 87.2 12.8 0 0 Yes 1.05 1 10.5 2337 10.52.33 9.46 15.2 91.5 8.5 0 0 Yes 1.06 1 6.5 2338 8.7 1.95 9.32 51.4175.23 24.5 0.27 0 Yes 1.38 1 19.5 2339 7.8 2.15 9.22 45.46 77.48 18.42.55 1.57 Yes 1.06 1 0.8 2340 5.96 2.23 11.62 35.19 72.62 0.08 25.5 1.8Yes 1.49 1 5.3 2341 1.6 2.26 11.15 73.02 64.06 15.2 19.4 1.34 No 1.34 14.3 2342 7.2 1.98 9.34 93.45 83 6.4 10.6 0 Yes 1.48 1 3.2 2343 10.5 2.029.58 30.66 86.4 3.2 10.4 0 No 1.49 1 1.5 2344 3.6 2.36 12.28 32.76 80.46.1 13.5 0.001 Yes 1.29 1 4.5 2345 4.5 3.05 12.52 30.89 70.1 16.8 12.50.6 Yes 1.23 1 0.8 2346 7.9 2.57 11.9 45.9 60.9 27.5 10.8 0.8 Yes 1.23 16.5 Coating details Mg Total content metal of all grain Invention metalcontent Coat Example grains of coat thickness Coating Corrosion No (Mass%) (Mass %) Base resin type (μm) method Test Results 2325 0.007 30Alkali silicate 19 Spray E 2326 2.462 76 Alkyl silicate 15 Spray E 23270.729 72 Alkali silicate 18 Spray E 2328 16.204 30 Alkyl silicate 22Spray E 2329 0.022 83 Alkyl silicate 21 Spray E 2330 1.283 75 Alkylsilicate 29 Spray E 2331 1.688 76 Alkali silicate 23 Spray E 2332 1.73172 Alkyl silicate 21 Spray E 2333 0.500 83 Alkali silicate 19 Spray E2334 2.409 50 Alkyl silicate 21 Spray E 2335 12.750 72 Alkali silicate19 Spray E 2336 1.113 50 Acrylic resin 654 Spray E 2337 1.133 48 Alkalisilicate 700 Spray E 2338 1.195 75 Alkyl silicate 555 Spray E 233910.222 55 Alkyl silicate 321 Spray E 2340 0.013 38 Alkyl silicate 152Brush E 2341 2.868 48 Urethane resin 674 Spray E 2342 1.524 76 Polyesterresin 325 Spray E 2343 1.280 72 Alkyl silicate 665 Spray E 2344 1.109 75Alkyl silicate 354 Brush E 2345 9.333 76 Alkyl silicate 165 Spray E 23463.667 72 Urethane resin 354 Spray E

TABLE 119 Percent Diameter of fine- distribution grain Mg solid (peakmetal solution Average diameter) of grains phase and Any of diameter Znmetal among Zn Chemical component Alloy Zn—Mg MgZn2, of later- grains/Znmetal content of Zn metal grain intermetallic Mg2Zn11, added Zn alloygrains grains/ grains/Zn alloy fracture compounds Mg2Zn3, Inventionmetal (μm) Zn alloy grains surfaces Ave present on MgZn, Example grainsFine Coarse grains (Mass %) or cracks aspect grain Mg7Zn3 No (μm) metalmetal (Vol %) Zn Mg Al Si present? ratio surfaces? present? 2347 16.52.35 9.25 35.87 88.8 11.2 0 0 Yes 1.12 Yes Yes 2348 13.5 2.57 9.56 42.0490.6 9.4 0 0 No 1.38 Yes Yes 2349 0.96 2.56 9.84 6.55 81.45 18.5 0 0.5Yes 1.22 Yes Yes 2350 0.96 2.21 9.75 43.60 99.97 0.03 0 0 Yes 1.14 YesYes 2351 8.45 2.64 9.85 44.12 98.4 1.6 0 0 No 1.02 Yes Yes 2352 2.9 1.998.56 37.21 93.2 6.8 0 0 Yes 1.05 Yes Yes 2353 5.4 2.94 8.21 43.38 84.513.9 0 1.6 No 1.36 No Yes 2354 10.6 2.58 8.33 13.52 98.1 1.9 0 0 Yes1.11 No Yes 2355 2.32 2.37 8 44.94 94.3 5.7 0 0 No 1.07 Yes Yes 2356 7.82.15 9.22 45.46 90.8 9.2 0 0 No 1.42 Yes Yes 2357 7.95 2.96 9.36 35.9683.3 15.4 0 1.3 Yes 1.38 No Yes 2358 20.59 2.85 9.45 42.13 79.84 18.6 01.56 Yes 1.22 No Yes 2359 22.5 2.94 9.61 7.56 96.4 3.6 0 0 Yes 1.14 YesYes 2360 4.6 2.11 9.85 43.69 94.6 5.4 0 0 Yes 1.13 Yes Yes 2361 4.9 2.689.23 44.21 92.4 7.6 0 0 Yes 1.02 No Yes 2362 10.5 2.99 9.08 39.51 75.524.5 0 0 Yes 1.06 Yes Yes 2363 8.45 2.78 9.87 45.68 82.4 17.6 0 0 Yes1.05 Yes Yes 2364 30.5 2.96 9.46 65.58 98.6 1.4 0 0 Yes 1.24 No Yes 236549.5 2.85 9.28 47.24 78.5 21.5 0 0 Yes 1.33 No Yes 2366 5.9 2.64 9.4547.76 89.6 10.4 0 0 Yes 1.27 Yes Yes Ratio of (Zn metal grains or Znalloy grains):(Later- Coating details added Mg Total Zn metal grains)content metal Zn metal Later- of all grain Invention grains/ added Znmetal content Coat Example Zn alloy metal grains of coat Base resinthickness Coating Corrosion No grains grains (Mass %) (Mass %) type (μm)method Test Results 2347 1 5 1.867 49 Alkyl 14 Spray E silicate 2348 1198.7 0.047 89 Urethane 55 Spray E resin 2349 1 1 9.250 90 Alkyl 8 SprayE silicate 2350 1 1.5 0.012 86 Urethane 122 Brush E resin 2351 1 0.0081.587 48 Alkyl 555 Spray E silicate 2352 1 1.4 2.833 47 Alkali 19 SprayE silicate 2353 1 4.2 2.673 47 Alkyl 25 Brush E silicate 2354 1 1.60.731 47 Alkyl 58 Spray E silicate 2355 1 7.5 0.671 52 Alkyl 685 Spray Esilicate 2356 1 1.6 3.538 52 Alkali 19 Brush E silicate 2357 1 2 5.13352 Urethane 700 Spray E resin 2358 1 270 0.069 88 Alkyl 77 Spray Esilicate 2359 1 7.5 0.424 87 Alkyl 54 Spray E silicate 2360 1 2.9 1.38589 Alkyl 64 Spray E silicate 2361 1 2.6 2.111 90 Alkyl 34 Brush Esilicate 2362 1 0.1 22.273 91 Alkali 28 Spray E silicate 2363 1 1.28.000 46 Urethane 109 Brush E resin 2364 1 1.2 0.636 47 Alkyl 15 Spray Esilicate 2365 1 62 0.341 47 Alkyl 14 Spray E silicate 2366 1 2.4 3.05949 Alkyl 18 Spray E silicate

TABLE 120 Percent Diameter of fine- distribution grain Mg solid (peakmetal solution Average diameter) of grains phase and Any of diameter Znmetal among Zn Chemical component Alloy Zn—Mg MgZn2, of later- grains/Znmetal content of Zn metal grain intermetallic Mg2Zn11, added Zn alloygrains grains/ grains/Zn alloy fracture compounds Mg2Zn3, Inventionmetal (μm) Zn alloy grains surfaces Ave present on MgZn, Example grainsFine Coarse grains (Mass %) or cracks aspect grain Mg7Zn3 No (μm) metalmetal (Vol %) Zn Mg Al Si present? ratio surfaces? present? 2367 4.522.35 9.25 45.02 87.2 12.8 0 0 Yes 1.05 Yes Yes 2368 5.96 2.12 9.46 47.0292.2 7.8 0 0 Yes 1.22 No Yes 2369 5.5 2.34 9.46 7.66 70.5 29.5 0 0 Yes1.13 No Yes 2370 3.6 2.33 9.46 15.20 91.5 8.5 0 0 Yes 1.06 Yes Yes 237116.5 2.23 9.06 43.16 74.5 25.5 0 0 Yes 1.05 Yes Yes 2372 12.5 2.12 9.349.33 99.93 0.07 0 0 Yes 1.24 Yes Yes 2373 16.5 2.21 8.68 19.47 89.210.8 0 0 No 1.05 Yes Yes 2374 10.9 1.38 8.53 69.55 86 11.2 1.6 1.2 No1.12 Yes Yes 2375 5.6 1.95 9.32 51.41 75.23 24.5 0.27 0 Yes 1.38 No Yes2376 22.6 2.26 8.95 75.88 82.6 17.4 0 0 Yes 1.13 No Yes 2377 20.59 2.0512.54 48.08 98.7 1.3 0 0 Yes 1.33 Yes Yes 2378 20.59 1.65 8.7 66.85 80.519.5 0 0 Yes 1.27 Yes Yes 2379 9.56 2.35 8.55 7.68 88.85 10.8 0.05 0.3No 1.23 No Yes 2380 5.9 1.62 8.91 8.64 87.7 11.9 0.4 0 Yes 1.11 Yes Yes2381 6.54 1.88 9.91 16.58 90.5 9.5 0 0 Yes 1.42 Yes Yes 2382 21.4 2.359.25 35.87 89.5 10.5 0 0 Yes 1.06 No Yes 2383 9.8 2.57 9.56 42.04 84.915.1 0 0 Yes 1.05 Yes Yes 2384 6.59 2.56 9.84 38.41 83.2 16.8 0 0 Yes1.07 Yes Yes 2385 6.54 2.21 9.75 6.99 89.4 10.6 0 0 Yes 1.42 No Yes 238616.5 2.64 9.85 44.12 84.3 13.3 2.4 0 Yes 1.38 Yes Yes Ratio of (Zn metalgrains or Zn alloy grains):(Later- Coating details added Mg Total Znmetal grains) content metal Zn metal Later- of all grain Inventiongrains/ added Zn metal content Coat Example Zn alloy metal grains ofcoat Base resin thickness Coating Corrosion No grains grains (Mass %)(Mass %) type (μm) method Test Results 2367 1 2.1 4.129 50 Alkali 2Spray G silicate 2368 1 34.5 0.220 87 Alkyl 37 Spray E silicate 2369 1270 0.109 83 Alkali 12 Spray E silicate 2370 1 32.5 0.254 48 Alkyl 160Brush E silicate 2371 1 3 6.375 51 Alkali 5 Brush G silicate 2372 1 1.50.028 51 Alkyl 56 Brush E silicate 2373 1 7.5 1.271 87 Alkali 2 Spray Gsilicate 2374 1 13.5 0.772 85 Alkyl 18 Spray E silicate 2375 1 5 4.08386 Alkyl 23 Spray E silicate 2376 1 5 2.900 50 Epoxy resin 30 Brush E2377 1 1 0.650 51 Acrylic resin 77 Brush E 2378 1 120 0.161 51 Urethane655 Brush E resin 2379 1 3.7 2.298 80 Polyester 47 Spray E resin 2380 16.1 1.676 46 Epoxy resin 43 Spray E 2381 1 198.5 0.048 51 Acrylic resin52 Brush E 2382 1 2.5 3.000 86 Urethane 20 Brush E resin 2383 1 18.50.774 85 Polyester 200 Brush E resin 2384 1 8 1.867 82 Alkali 22 Spray Esilicate 2385 1 1.6 4.077 81 Alkyl 25 Spray E silicate 2386 1 1.2 6.04546 Alkali 14 Spray E silicate

TABLE 121 Percent Diameter of fine- distribution grain Mg solid (peakmetal solution Average diameter) of grains phase and Any of diameter Znmetal among Zn Chemical component Alloy Zn—Mg MgZn2, of later- grains/Znmetal content of Zn metal grain intermetallic Mg2Zn11, added Zn alloygrains grains/ grains/Zn alloy fracture compounds Mg2Zn3, Inventionmetal (μm) Zn alloy grains surfaces Ave present on MgZn, Example grainsFine Coarse grains (Mass %) or cracks aspect grain Mg7Zn3 No (μm) metalmetal (Vol %) Zn Mg Al Si present? ratio surfaces? present? 2387 7.82.65 8.56 66.99 98.6 1.4 0 0 No 1.22 Yes Yes 2388 16.5 2.94 8.21 43.3876.45 23.5 0 0.05 Yes 1.14 Yes Yes 2389 6.54 2.58 8.33 39.75 91.1 8.9 00 Yes 1.13 Yes Yes 2390 8.45 2.37 8 65.38 85.1 14.9 0 0 Yes 1.02 Yes Yes2391 8.5 2.15 9.22 45.46 77.48 18.4 2.55 1.57 Yes 1.06 Yes Yes 2392 13.62.96 9.36 22.55 97.9 2.1 0 0 Yes 1.05 Yes Yes 2393 12.33 2.85 9.45 42.1394.8 5.2 0 0 Yes 1.24 Yes Yes 2394 16.5 2.94 9.61 38.50 84.6 15.4 0 0Yes 1.33 Yes Yes 2395 7.9 2.11 9.85 64.13 89.3 10.7 0 0 Yes 1.27 Yes Yes2396 10.5 2.68 9.23 44.21 83.3 16.7 0 0 Yes 1.05 Yes Yes 2397 16.5 2.999.08 39.51 80.05 19.6 0.35 0 No 1.12 Yes Yes 2398 10.64 1.82 9.87 78.6485.5 14.5 0 0 No 1.23 Yes Yes 2399 10.5 1.42 9.46 42.05 85 14.2 0 0.8 No1.36 Yes Yes 2400 20.59 2.12 9.28 64.58 87.3 12.7 0 0 No 1.11 Yes Yes2401 8.5 1.92 9.45 47.76 89.5 10.5 0 0 Yes 1.07 Yes Yes 2402 0.5 2.119.63 24.10 87.3 11.8 0 0.9 Yes 1.42 Yes Yes 2403 10.5 2.97 9.16 39.1186.4 12.8 0.5 0.3 Yes 1.38 Yes Yes 2404 11.5 2.36 10.39 19.65 93.8 6.2 00 Yes 1.22 Yes Yes 2405 36.5 3.05 10.56 65.39 83.8 16.2 0 0 Yes 1.14 YesYes 2406 1.5 2.15 10.74 48.57 80.4 19.6 0 0 Yes 1.13 Yes Yes Ratio of(Zn metal grains or Zn alloy grains):(Later- Coating details added MgTotal Zn metal grains) content metal Zn metal Later- of all grainInvention grains/ added Zn metal content Coat Example Zn alloy metalgrains of coat Base resin thickness Coating Corrosion No grains grains(Mass %) (Mass %) type (μm) method Test Results 2387 1 0.5 0.933 47Urethane 112 Spray E resin 2388 1 9 2.350 48 Alkali 24 Spray E silicate2389 1 4.5 1.618 51 Urethane 150 Spray E resin 2390 1 136 0.109 53Alkali 18 Spray E silicate 2391 1 13 1.314 88 Alkyl 19 Brush E silicate2392 1 10.6 0.181 85 Alkyl 24 Spray E silicate 2393 1 1.6 2.000 83Urethane 99 Spray E resin 2394 1 68 0.223 82 Alkyl 7 Spray E silicate2395 1 4.5 1.945 83 Epoxy resin 100 Spray E 2396 1 10.5 1.452 47 Alkyl27 Brush E silicate 2397 1 4.9 3.322 51 Alkali 15 Spray E silicate 23981 10.5 1.261 52 Alkyl 14 Spray E silicate 2399 1 192 0.074 51 Urethane55 Spray E resin 2400 1 0.07 11.869 52 Alkyl 8 Spray E silicate 2401 19.5 1.000 89 Urethane 122 Brush E resin 2402 1 2.6 3.278 85 Alkyl 54Spray E silicate 2403 1 4.5 2.327 82 Alkali 19 Spray E silicate 2404 1 31.550 87 Alkyl 25 Brush E silicate 2405 1 7.5 1.906 88 Alkyl 58 Spray Esilicate 2406 1 77 0.251 49 Alkyl 21 Spray E silicate

TABLE 122 Percent Diameter of fine- distribution grain Mg solid (peakmetal solution Average diameter) of grains phase and Any of diameter Znmetal among Zn Chemical component Alloy Zn—Mg MgZn2, of later- grains/Znmetal content of Zn metal grain intermetallic Mg2Zn11, added Zn alloygrains grains/ grains/Zn alloy fracture compounds Mg2Zn3, Inventionmetal (μm) Zn alloy grains surfaces Ave present on MgZn, Example grainsFine Coarse grains (Mass %) or cracks aspect grain Mg7Zn3 No (μm) metalmetal (Vol %) Zn Mg Al Si present? ratio surfaces? present? 2407 8.72.19 10.27 24.91 87.6 12.4 0 0 Yes 1.02 Yes Yes 2408 7.8 2.48 11.5 39.9289.3 10.7 0 0 Yes 1.06 Yes Yes 2409 5.96 2.85 11.67 22.65 91.5 8.5 0 0Yes 1.05 Yes Yes 2410 0.06 2.75 11.85 66.20 94.9 5.1 0 0 Yes 1.24 YesYes 2411 0.9 2.46 11.38 49.38 75.5 24.5 0 0 Yes 1.33 Yes Yes 2412 3.62.71 12.61 30.58 86.5 13.5 0 0 Yes 1.27 Yes Yes 2413 10.5 2.36 12.7845.59 80 20 0 0 Yes 1.05 Yes Yes 2414 0.05 2.16 9.57 28.32 84.5 15.5 0 0Yes 1.12 Yes Yes 2415 2.32 2.46 9.81 71.87 88 10.5 1.5 0 Yes 1.23 YesYes 2416 20.4 2.49 8.43 53.05 92.1 7.9 0 0 Yes 1.36 Yes Yes 2417 7.342.95 8.55 27.74 95.2 4.8 0 0 Yes 1.11 Yes Yes 2418 9.4 2.36 8.22 42.7581.6 18.4 0 0 Yes 1.07 Yes Yes 2419 23.43 2.21 9.44 23.29 86.8 12.7 00.5 Yes 1.42 Yes Yes 2420 5.96 2.25 9.58 61.12 89.7 10.3 0 0 No 1.38 YesYes 2421 10.64 2.44 9.67 44.30 71.2 20.8 8 0 Yes 1.22 Yes Yes 2422 16.52.78 9.83 23.96 97.5 2.5 0 0 No 1.14 Yes Yes 2423 7.95 2.15 10.07 44.0984.8 15.2 0 0 Yes 1.13 Yes Yes 2424 7.95 2.19 9.45 24.63 80.8 19.2 0 0No 1.02 Yes Yes 2425 9.64 2.48 9.3 62.46 78.7 13.5 7.8 0 Yes 1.06 YesYes Ratio of (Zn metal grains or Zn alloy grains):(Later- Coatingdetails added Mg Total Zn metal grains) content metal Zn metal Later- ofall grain Invention grains/ added Zn metal content Coat Example Zn alloymetal grains of coat Base resin thickness Coating Corrosion No grainsgrains (Mass %) (Mass %) type (μm) method Test Results 2407 1 10.5 1.07850 Alkali 19 Brush E silicate 2408 1 15.5 0.648 51 Urethane 56 Spray Eresin 2409 1 5.8 1.250 22 Alkyl 77 Spray E silicate 2410 1 1.9 1.759 53Alkyl 12 Spray E silicate 2411 1 16.9 1.369 88 Alkyl 64 Spray E silicate2412 1 1.5 5.400 85 Alkyl 34 Brush E silicate 2413 1 0.05 19.048 83Alkali 28 Spray E silicate 2414 1 215 0.072 81 Urethane 109 Brush Eresin 2415 1 4.2 2.019 80 Alkyl 15 Spray E silicate 2416 1 1.5 3.160 47Alkyl 14 Spray E silicate 2417 1 4.8 0.828 49 Alkyl 18 Spray E silicate2418 1 0.5 12.267 50 Urethane 122 Brush E resin 2419 1 2.3 3.848 51Alkyl 54 Spray E silicate 2420 1 0.05 9.810 52 Alkali 19 Spray Esilicate 2421 1 120 0.172 83 Alkyl 25 Brush E silicate 2422 1 3.7 0.53288 Alkyl 58 Spray E silicate 2423 1 16.5 0.869 85 Alkyl 21 Spray Esilicate 2424 1 24 0.768 83 Alkali 19 Brush E silicate 2425 1 0.0113.366 82 Urethane 56 Spray E resin

TABLE 123 Percent Diameter of fine- distribution grain Mg solid (peakmetal solution Average diameter) of grains phase and Any of diameter Znmetal among Zn Chemical component Alloy Zn—Mg MgZn2, of later- grains/Znmetal content of Zn metal grain intermetallic Mg2Zn11, added Zn alloygrains grains/ grains/Zn alloy fracture compounds Mg2Zn3, Inventionmetal (μm) Zn alloy grains surfaces Ave present on MgZn, Example grainsFine Coarse grains (Mass %) or cracks aspect grain Mg7Zn3 No (μm) metalmetal (Vol %) Zn Mg Al Si present? ratio surfaces? present? 2426 0.962.59 9.99 45.64 88.1 11.9 0 0 No 1.05 Yes Yes 2427 5.26 2.47 9.58 25.3088.5 10.6 0 0.9 Yes 1.24 Yes Yes 2428 13.5 2.69 9.4 42.84 84.6 15.4 0 0Yes 1.33 Yes Yes 2429 13.5 2.57 9.57 25.44 97.4 2.6 0 0 Yes 1.27 Yes Yes2430 9.64 2.49 9.54 63.27 83.3 16.7 0 0 Yes 1.37 Yes Yes 2431 16.5 2.689.58 46.45 91.9 8.1 0 0 Yes 1.10 Yes Yes 2432 20.59 2.35 9.25 46.45 86.313.7 0 0 Yes 1.04 Yes Yes 2433 0.96 2.48 10.04 50.91 81.5 18.5 0 0 Yes1.02 Yes Yes 2434 6.54 2.13 11.27 27.25 97.6 2.4 0 0 Yes 1.01 Yes Yes2435 5.26 1.93 11.44 42.26 89.1 10.9 0 0 Yes 1.08 Yes Yes 2436 10.642.05 8.9 33.69 92.8 7.2 0 0 Yes 1.14 Yes Yes 2437 9.64 1.42 8.75 48.7081.96 17.5 0.5 0.04 No 1.23 Yes Yes 2438 6.9 1.46 9.44 29.24 85.4 14.6 00 No 1.33 Yes Yes 2439 10.5 1.75 9.03 67.07 90.6 9.4 0 0 Yes 1.37 YesYes 2440 13.5 1.86 8.85 50.25 92.9 7.1 0 0 Yes 1.44 Yes Yes 2441 20.591.74 8.95 29.91 77.5 22.5 0 0 Yes 1.21 Yes Yes 2442 7.82 1.96 12.5487.50 84.8 13.7 1.5 0 No 1.22 Yes Yes 2443 5.26 1.65 8.7 30.58 87.1 12.90 0 No 1.23 Yes Yes 2444 7.06 2.35 8.55 68.41 95.7 4.3 0 0 Yes 1.47 YesYes 2445 0.64 1.62 10.72 54.59 80.2 17.6 1 1.2 No 1.01 Yes Yes Ratio of(Zn metal grains or Zn alloy grains):(Later- Coating details added MgTotal Zn metal grains) content metal Zn metal Later- of all grainInvention grains/ added Zn metal content Coat Example Zn alloy metalgrains of coat Base resin thickness Coating Corrosion No grains grains(Mass %) (Mass %) type (μm) method Test Results 2426 1 7.8 1.352 47Alkyl 77 Spray E silicate 2427 1 1.6 4.077 46 Alkyl 54 Spray E silicate2428 1 3.2 3.667 49 Alkali 2 Spray G silicate 2429 1 5.4 0.406 50 Alkali20 Spray E silicate 2430 1 220 0.076 51 Alkali 5 Spray G silicate 2431 12.2 2.531 83 Alkyl 20 Spray E silicate 2432 1 2.8 3.605 82 Alkali 15Brush E silicate 2433 1 12 1.423 88 Alkyl 57 Brush E silicate 2434 110.6 0.207 85 Alkali 13 Brush E silicate 2435 1 35 0.303 86 Alkyl 22Brush E silicate 2436 1 125.5 0.057 47 Alkali 20 Spray E silicate 2437 16 2.500 48 Alkyl 27 Spray E silicate 2438 1 34 0.417 50 Alkali 15 SprayE silicate 2439 1 1.6 3.615 51 Alkyl 35 Spray E silicate 2440 1 7.50.835 52 Alkali 34 Brush E silicate 2441 1 200 0.112 88 Alkyl 45 Brush Esilicate 2442 1 7.5 1.612 89 Alkali 52 Brush E silicate 2443 1 3.2 3.07186 Alkyl 23 Brush E silicate 2444 1 2.6 1.194 87 Alkali 5 Spray Esilicate 2445 1 3 4.400 86 Alkyl 52 Brush E silicate

TABLE 124 Percent Diameter of fine- distribution grain Mg solid (peakmetal solution Average diameter) of grains phase and Any of diameter Znmetal among Zn Chemical component Alloy Zn—Mg MgZn2, of later- grains/Znmetal content of Zn metal grain intermetallic Mg2Zn11, added Zn alloygrains grains/ grains/Zn alloy fracture compounds Mg2Zn3, Inventionmetal (μm) Zn alloy grains surfaces Ave present on MgZn, Example grainsFine Coarse grains (Mass %) or cracks aspect grain Mg7Zn3 No (μm) metalmetal (Vol %) Zn Mg Al Si present? ratio surfaces? present? 2446 46.82.25 9.9 34.25 98.8 0.6 0.6 0 Yes 1.04 Yes Yes 2447 16.5 2.36 9.57 37.6186.9 10.3 1.6 1.2 Yes 1.05 Yes Yes 2448 13.5 2.24 10.79 45.60 92.98 70.02 0 Yes 1.12 Yes Yes 2449 0.96 2.46 10.93 46.70 75.5 23.5 1 0 Yes1.11 Yes Yes 2450 0.96 1.56 11.02 41.22 82.5 17.5 0 0 No 1.08 Yes Yes2451 8.45 1.24 11.18 45.68 80.1 12.4 7.5 0 Yes 1.47 Yes Yes 2452 2.91.68 11.42 22.02 85.09 14.9 0 0.01 Yes 1.50 Yes Yes 2453 5.4 2.65 10.837.03 78.7 20.7 0 0.6 No 1.13 Yes Yes 2454 10.6 2.22 10.65 28.46 91.298.6 0 0.11 Yes 1.26 Yes Yes 2455 2.32 2.45 11.34 43.47 85.8 14.2 0 0 Yes1.14 Yes Yes 2456 7.8 2.23 11.62 35.19 98.12 0.08 0 1.8 Yes 1.49 Yes Yes2457 7.95 2.26 11.15 73.02 83.46 15.2 0 1.34 No 1.34 Yes Yes 2458 20.592.72 12.38 56.20 73.17 17.4 9 0.43 Yes 1.18 Yes Yes 2459 22.5 2.13 12.5535.86 98.6 0.8 0.6 0 Yes 1.17 Yes Yes 2460 4.6 1.98 9.34 93.45 93.55 6.40.05 0 Yes 1.48 Yes Yes 2461 4.9 2.02 9.58 30.66 96.78 3.2 0.02 0 No1.49 Yes Yes 2462 10.5 2.21 9.88 74.21 83 9.2 7.8 0 Yes 1.27 Yes Yes2463 8.45 2.55 10 55.39 70.92 19.2 9.88 0 Yes 1.17 Yes Yes 2464 30.51.92 10.67 30.08 80.25 15.1 4.65 0 Yes 1.16 Yes Yes 2465 49.5 1.96 11.8945.09 81.85 14.5 3.65 0 Yes 1.27 Yes Yes Ratio of (Zn metal grains or Znalloy grains):(Later- Coating details added Mg Total Zn metal grains)content metal Zn metal Later- of all grain Invention grains/ added Znmetal content Coat Example Zn alloy metal grains of coat Base resinthickness Coating Corrosion No grains grains (Mass %) (Mass %) type (μm)method Test Results 2446 1 15.2 0.037 46 Alkali 150 Brush E silicate2447 1 0.09 9.450 49 Alkyl 60 Brush E silicate 2448 1 13.5 0.483 35Alkali 15 Spray E silicate 2449 1 135.4 0.172 37 Alkyl 24 Spray Esilicate 2450 1 3 4.375 36 Alkali 34 Spray E silicate 2451 1 7.8 1.40938 Alkyl 20 Brush E silicate 2452 1 10.2 1.330 48 Alkali 200 Brush Esilicate 2453 1 7 2.588 46 Alkyl 56 Brush E silicate 2454 1 225.2 0.03851 Alkali 34 Spray E silicate 2455 1 5.4 2.219 46 Alkyl 2 Spray Gsilicate 2456 1 3.2 0.019 38 Alkali 15 Spray E silicate 2457 1 13.51.048 48 Alkali 10 Spray E silicate 2458 1 1.6 6.692 52 Alkyl 125 BrushE silicate 2459 1 1.5 0.320 30 Alkali 24 Brush E silicate 2460 1 2.51.829 76 Alkyl 110 Brush E silicate 2461 1 2.6 0.889 72 Alkali 24 BrushE silicate 2462 1 126 0.072 81 Alkyl 2 Spray G silicate 2463 1 120 0.15964 Alkali 37 Spray E silicate 2464 1 7.5 1.776 69 Alkyl 113 Brush Esilicate 2465 1 6.5 1.933 83 Alkali 2 Spray G silicate

TABLE 125 Percent Diameter of fine- distribution grain Mg solid (peakmetal solution Average diameter) of grains phase and Any of diameter Znmetal among Zn Chemical component Alloy Zn—Mg MgZn2, of later- grains/Znmetal content of Zn metal grain intermetallic Mg2Zn11, added Zn alloygrains grains/ grains/Zn alloy fracture compounds Mg2Zn3, Inventionmetal (μm) Zn alloy grains surfaces Ave present on MgZn, Example grainsFine Coarse grains (Mass %) or cracks aspect grain Mg7Zn3 No (μm) metalmetal (Vol %) Zn Mg Al Si present? ratio surfaces? present? 2466 5.92.11 12.03 41.41 89.45 10.5 0.05 0 Yes 1.27 Yes Yes 2467 4.52 2.97 12.1217.75 87.3 7.5 5.2 0 Yes 1.49 Yes Yes 2468 5.96 2.36 12.28 32.76 93.96.1 0 0.001 Yes 1.29 Yes Yes 2469 5.5 3.05 12.52 30.89 82.55 16.8 0.050.6 Yes 1.23 Yes Yes 2470 3.6 2.57 11.9 45.90 70.7 27.5 1 0.8 Yes 1.23Yes Yes 2471 16.5 2.65 11.75 42.22 94.6 2.9 0 2.5 Yes 1.23 Yes Yes 247212.5 2.54 12.44 18.56 94 4.5 0 1.5 No 1.23 Yes Yes 2473 16.5 2.85 12.0333.57 99.43 0.07 0 0.5 Yes 1.27 Yes Yes 2474 10.9 2.75 10.61 31.70 96.823.1 0.04 0.04 Yes 1.23 Yes Yes 2475 5.6 2.46 11.3 46.71 76.3 20.5 1 2.2Yes 1.36 Yes Yes 2476 22.6 2.71 11.58 47.89 68.84 29.5 0.06 1.6 Yes 1.11Yes Yes 2477 20.59 2.36 11.11 24.23 92.33 7.6 0.07 0 Yes 1.02 Yes Yes2478 20.59 2.16 12.34 39.24 95.2 0.7 1.2 2.9 Yes 1.05 Yes Yes 2479 9.562.46 12.51 37.37 91.8 4.6 1.8 1.8 Yes 1.24 Yes Yes 2480 5.9 2.49 11.6450.38 82 8.3 9.2 0.5 Yes 1.33 Yes Yes 2481 6.54 1.63 9.16 37.14 88.211.8 0 0 Yes 1.27 Yes Yes 2482 21.4 1.51 9.46 13.48 86.06 12.9 0 1.04Yes 1.50 Yes Yes 2483 9.8 3.05 9.54 40.05 99.34 0.6 0 0.06 Yes 1.13 YesYes 2484 6.59 2.57 9.56 38.18 89.51 9.5 0 0.99 No 1.04 Yes Yes 2485 6.542.65 9.46 7.63 88.3 11.7 0 0 Yes 1.02 Yes Yes Ratio of (Zn metal grainsor Zn alloy grains):(Later- Coating details added Mg Total Zn metalgrains) content metal Zn metal Later- of all grain Invention grains/added Zn metal content Coat Example Zn alloy metal grains of coat Baseresin thickness Coating Corrosion No grains grains (Mass %) (Mass %)type (μm) method Test Results 2466 1 20 0.500 30 Alkyl 75 Brush Esilicate 2467 1 0.007 7.448 83 Alkali 30 Brush E silicate 2468 1 9 0.61075 Alkyl 34 Brush E silicate 2469 1 7.5 1.976 76 Epoxy resin 124 Brush E2470 1 50 0.539 72 Acrylic resin 15 Spray E 2471 1 0.005 2.886 71Urethane 23 Spray E resin 2472 1 25.6 0.169 82 Polyester 157 Brush Eresin 2473 1 56.5 0.001 81 Epoxy resin 26 Spray E 2474 1 1.6 1.192 83Acrylic resin 38 Spray E 2475 1 3 5.125 50 Urethane 160 Brush E resin2476 1 100 0.292 72 Polyester 27 Brush E resin 2477 1 65.5 0.114 47Epoxy resin 180 Brush E 2478 1 1.9 0.241 47 Acrylic resin 26 Spray E2479 1 2.1 1.484 52 Urethane 180 Brush E resin 2480 1 10.5 0.722 52Polyester 15 Spray E resin 2481 1 6.5 1.573 50 Epoxy resin 2 Spray G2482 1 19.5 0.629 46 Acrylic resin 28 Spray E 2483 1 0.8 0.333 47Urethane 30 Spray E resin 2484 1 18.5 0.487 83 Polyester 2 Spray G resin2485 1 4.3 2.208 52 Epoxy resin 157 Brush E

TABLE 126 Percent Diameter of fine- distribution grain Mg solid (peakmetal solution Average diameter) of grains phase and Any of diameter Znmetal among Zn Chemical component Alloy Zn—Mg MgZn2, of later- grains/Znmetal content of Zn metal grain intermetallic Mg2Zn11, added Zn alloygrains grains/ grains/Zn alloy fracture compounds Mg2Zn3, Inventionmetal (μm) Zn alloy grains surfaces Ave present on MgZn, Example grainsFine Coarse grains (Mass %) or cracks aspect grain Mg7Zn3 No (μm) metalmetal (Vol %) Zn Mg Al Si present? ratio surfaces? present? 2487 7.82.85 12.08 14.29 87.8 11.7 0.5 0 Yes 1.15 Yes Yes 2488 16.5 2.75 12.2440.86 95.6 4.2 0.2 0 Yes 1.34 Yes Yes 2489 6.54 2.46 12.48 97.50 97.132.8 0.07 0 Yes 1.25 Yes Yes 2490 8.45 2.71 11.86 13.30 86.1 13.9 0 0 Yes1.19 Yes Yes 2491 8.5 2.36 11.71 43.62 82.6 14.6 1.6 1.2 No 1.18 Yes Yes2492 13.6 2.46 11.35 56.93 72.95 26.4 0.65 0 Yes 1.24 Yes Yes 2493 12.331.45 12.02 36.59 83.23 16.5 0.27 0 Yes 1.11 Yes Yes 2494 16.5 2.42 13.2439.95 79.4 19.5 0.45 0.65 Yes 1.27 Yes Yes 2495 7.9 2.11 9.46 86.5097.08 1.6 0.33 0.99 Yes 1.31 Yes Yes 2496 10.5 2.97 13.47 32.87 90.5 6 12.5 Yes 1.26 Yes Yes 2497 16.5 2.36 9.46 16.23 88.93 8.4 0.87 1.8 Yes1.14 Yes Yes 2498 10.64 3.05 13.87 37.40 86.7 13.3 0 0 Yes 1.34 Yes Yes2499 10.5 2.57 13.25 40.76 81.4 18.6 0. 0 Yes 1.16 Yes Yes 2500 20.592.65 13.1 87.31 97.34 1.8 0.86 0 No 1.47 Yes Yes 2501 8.5 2.12 9.0892.50 95.25 4.1 0.65 0 Yes 1.48 Yes Yes 2502 0.5 1.65 9.87 17.93 82.8716.7 0.43 0 No 1.49 Yes Yes 2503 10.5 2.35 9.46 44.50 99 0.4 0.6 0 Yes1.34 Yes Yes 2504 11.5 1.63 9.28 96.50 89.35 10.6 0.05 0 Yes 1.29 YesYes 2505 36.5 2.64 9.45 16.94 93.08 6.9 0.02 0 Yes 1.18 Yes Yes 2506 1.52.35 9.25 88.12 99.82 0.05 0.06 0.07 Yes 1.48 Yes Yes Ratio of (Zn metalgrains or Zn alloy grains):(Later- Coating details added Mg Total Znmetal grains) content metal Zn metal Later- of all grain Inventiongrains/ added Zn metal content Coat Example Zn alloy metal grains ofcoat Base resin thickness Coating Corrosion No grains grains (Mass %)(Mass %) type (μm) method Test Results 2487 1 1.5 4.680 85 Alkyl 130Brush E silicate 2488 1 4.5 0.764 53 Alkyl 29 Brush E silicate 2489 115.5 0.170 88 Epoxy resin 30 Brush E 2490 1 10.5 1.209 85 Acrylic resin120 Brush E 2491 1 2.5 4.171 52 Urethane 187 Brush E resin 2492 1 92.640 83 Polyester 28 Spray E resin 2493 1 10.5 0.156 88 Epoxy resin 5Spray E 2494 1 5.7 2.910 49 Acrylic resin 35 Spray E 2495 1 3.9 0.327 50Urethane 5 Spray G resin 2496 1 4.5 1.091 51 Polyester 200 Brush E resin2497 1 3.6 1.826 83 Alkali 25 Spray E silicate 2498 1 16.4 0.764 82Alkali 15 Spray E silicate 2499 1 6 2.657 88 Alkyl 20 Spray E silicate2500 1 7.5 0.212 85 Alkali 18 Spray E silicate 2501 1 10.5 0.357 87Alkyl 22 Spray E silicate 2502 1 2.6 4.639 86 Alkali 19 Spray E silicate2503 1 1.5 0.160 46 Alkyl 29 Spray E silicate 2504 1 13.5 0.731 49Alkali 23 Spray E silicate 2505 1 2.6 1.917 35 Alkyl 21 Spray E silicate2506 1 6.5 0.007 30 Alkali 19 Spray E silicate

TABLE 127 Percent Diameter of fine- distribution grain Mg solid (peakmetal solution Average diameter) of grains phase and Any of diameter Znmetal among Zn Chemical component Alloy Zn—Mg MgZn2, of later- grains/Znmetal content of Zn metal grain intermetallic Mg2Zn11, added Zn alloygrains grains/ grains/Zn alloy fracture compounds Mg2Zn3, Inventionmetal (μm) Zn alloy grains surfaces Ave present on MgZn, Example grainsFine Coarse grains (Mass %) or cracks aspect grain Mg7Zn3 No (μm) metalmetal (Vol %) Zn Mg Al Si present? ratio surfaces? present? 2507 8.72.31 9.46 60.57 91.56 6.4 1.05 0.99 Yes 1.27 Yes Yes 2508 7.8 2.62 9.4639.48 93.36 3.5 2.6 0.54 Yes 1.17 Yes Yes 2509 5.96 2.52 9.46 15.8282.13 17.5 0.05 0.32 Yes 1.27 Yes Yes 2510 0.06 2.24 13.32 49.57 91.23.6 5.2 0 No 1.27 Yes Yes 2511 0.9 0.05 6.54 86.52 94.1 5.9 0 0.001 Yes1.48 Yes Yes 2512 3.6 2.42 6.35 90.98 83.2 16.2 0 0.6 No 1.49 Yes Yes2513 10.5 0.11 7.54 67.32 76.7 22.5 0 0.8 Yes 1.34 Yes Yes 2514 0.051.92 8.64 82.33 96.52 3.4 0.04 0.04 Yes 1.23 Yes Yes 2515 2.32 0.46 6.4573.76 68.3 26.5 3 2.2 Yes 1.23 Yes Yes 2516 20.4 0.77 6.48 88.77 72.8425.5 0.06 1.6 Yes 1.23 Yes Yes 2517 8.6 2.35 9.25 45.02 87.2 12.8 0 0Yes 1.05 Yes Yes 2518 10.5 2.33 9.46 15.2 91.5 8.5 0 0 Yes 1.06 Yes Yes2519 8.7 1.95 9.32 51.41 75.23 24.5 0.27 0 Yes 1.38 Yes Yes 2520 7.82.15 9.22 45.46 77.48 18.4 2.55 1.57 Yes 1.06 Yes Yes 2521 5.96 2.2311.62 35.19 72.62 0.08 25.5 1.8 Yes 1.49 Yes Yes 2522 1.6 2.26 11.1573.02 64.06 15.2 19.4 1.34 No 1.34 Yes Yes 2523 7.2 1.98 9.34 93.45 836.4 10.6 0 Yes 1.48 Yes Yes 2524 10.5 2.02 9.58 30.66 86.4 3.2 10.4 0 No1.49 Yes Yes 2525 3.6 2.36 12.28 32.76 80.4 6.1 13.5 0.001 Yes 1.29 YesYes 2526 4.5 3.05 12.52 30.89 70.1 16.8 12.5 0.6 Yes 1.23 Yes Yes 25277.9 2.57 11.9 45.9 60.9 27.5 10.8 0.8 Yes 1.23 Yes Yes Ratio of (Znmetal grains or Zn alloy grains):(Later- Coating details added Mg TotalZn metal grains) content metal Zn metal Later- of all grain Inventiongrains/ added Zn metal content Coat Example Zn alloy metal grains ofcoat Base resin thickness Coating Corrosion No grains grains (Mass %)(Mass %) type (μm) method Test Results 2507 1 1.6 2.462 76 Alkyl 15Spray E silicate 2508 1 3.8 0.729 72 Alkali 18 Spray E silicate 2509 10.08 16.204 30 Alkyl 22 Spray E silicate 2510 1 164.5 0.022 83 Alkyl 21Spray E silicate 2511 1 3.6 1.283 75 Alkyl 29 Spray E silicate 2512 18.6 1.688 76 Alkali 23 Spray E silicate 2513 1 12 1.731 72 Alkyl 21Spray E silicate 2514 1 5.8 0.500 83 Alkali 19 Spray E silicate 2515 110 2.409 50 Alkyl 21 Spray E silicate 2516 1 1 12.750 72 Alkali 19 SprayE silicate 2517 1 10.5 1.113 50 Acrylic resin 654 Spray E 2518 1 6.51.133 48 Alkali 700 Spray E silicate 2519 1 19.5 1.195 75 Alkyl 555Spray E silicate 2520 1 0.8 10.222 55 Alkyl 12 Spray E silicate 2521 15.3 0.013 38 Alkyl 678 Brush E silicate 2522 1 4.3 2.868 48 Urethane 674Spray E resin 2523 1 3.2 1.524 76 Polyester 325 Spray E resin 2524 1 1.51.280 72 Alkyl 665 Spray E silicate 2525 1 4.5 1.109 75 Alkyl 354 BrushE silicate 2526 1 0.8 9.333 76 Alkyl 165 Spray E silicate 2527 1 6.53.667 72 Urethane 354 Spray E resin

TABLE 128 Percent Diameter of fine- distribution grain Mg solid (peakmetal solution Average diameter) of grains Chemical component phase andAny of diameter Zn metal among Zn content of Alloy Zn—Mg MgZn2, oflater- grains/Zn metal Zn metal grain intermetallic Mg2Zn11, added Znalloy grains grains/ grains/Zn alloy fracture compounds Mg2Zn3,Invention metal (μm) Zn alloy grains surfaces Ave present on MgZn,Example grains Fine Coarse grains (Mass %) or cracks aspect grain Mg7Zn3No (μm) metal metal (Vol %) Zn Mg Al Si present? ratio surfaces?present? 2528 16.5 2.35 9.25 35.87 88.8 11.2 0 0 Yes 1.12 Yes Yes 252913.5 2.57 9.56 42.04 90.6 9.4 0 0 No 1.38 Yes Yes 2530 0.96 2.56 9.846.55 81.45 18.5 0 0.05 Yes 1.22 Yes Yes 2531 0.96 2.21 9.75 43.60 99.970.03 0 0 Yes 1.14 Yes Yes 2532 8.45 2.64 9.85 44.12 98.4 1.6 0 0 No 1.02Yes Yes 2533 2.9 1.99 8.56 37.21 93.2 6.8 0 0 Yes 1.05 Yes Yes 2534 5.42.94 8.21 43.38 84.5 13.9 0 1.6 No 1.36 No Yes 2535 10.6 2.58 8.33 13.5298.1 1.9 0 0 Yes 1.11 No Yes 2536 2.32 2.37 8 44.94 94.3 5.7 0 0 No 1.07Yes Yes 2537 7.8 2.15 9.22 45.46 90.8 9.2 0 0 No 1.42 Yes Yes 2538 7.952.96 9.36 35.96 83.3 15.4 0 1.3 Yes 1.38 No Yes 2539 20.59 2.85 9.4542.13 79.84 18.6 0 1.56 Yes 1.22 No Yes 2540 22.5 2.94 9.61 7.56 96.43.6 0 0 Yes 1.14 Yes Yes 2541 4.6 2.11 9.85 43.69 94.6 5.4 0 0 Yes 1.13Yes Yes 2542 4.9 2.68 9.23 44.21 92.4 7.6 0 0 Yes 1.02 No Yes 2543 10.52.99 9.08 39.51 75.5 24.5 0 0 Yes 1.06 Yes Yes 2544 8.45 2.78 9.87 45.6882.4 17.6 0 0 Yes 1.05 Yes Yes 2545 30.5 2.96 9.46 65.58 98.6 1.4 0 0Yes 1.24 No Yes 2546 49.5 2.85 9.28 47.24 78.5 21.5 0 0 Yes 1.33 No Yes2547 5.9 2.64 9.45 47.76 89.6 10.4 0 0 Yes 1.27 Yes Yes Ratio of (Znmetal grains or Zn alloy grains):(Later- added Coating details Zn metalMg Total grains) content metal Zn metal Later- of all grain Inventiongrains/ added Zn metal content Coat Corrosion Example Zn alloy metalgrains of coat Base resin thickness Coating Test No grains grains (Mass%) (Mass %) type (μm) method Results 2528 1 5 1.867 49 Alkyl 14 Spray Esilicate 2529 1 198.7 0.047 89 Urethane 55 Spray E resin 2530 1 36 0.50090 Alkyl 8 Spray E silicate 2531 1 1.5 0.012 86 Urethane 122 Brush Eresin 2532 1 0.008 1.587 48 Alkyl 555 Spray E silicate 2533 1 1.4 2.83347 Alkali 19 Spray E silicate 2534 1 4.2 2.673 47 Alkyl 25 Brush Esilicate 2535 1 1.6 0.731 47 Alkyl 58 Spray E silicate 2536 1 7.5 0.67152 Alkyl 685 Spray E silicate 2537 1 1.6 3.538 52 Alkali 19 Brush Esilicate 2538 1 2 5.133 52 Urethane 700 Spray E resin 2539 1 270 0.06988 Alkyl 77 Spray E silicate 2540 1 7.5 0.424 87 Alkyl 54 Spray Esilicate 2541 1 2.9 1.385 89 Alkyl 64 Spray E silicate 2542 1 2.6 2.11190 Alkyl 34 Brush E silicate 2543 1 0.1 22.273 91 Alkali 28 Spray Esilicate 2544 1 1.2 8.000 46 Urethane 109 Brush E resin 2545 1 1.2 0.63647 Alkyl 15 Spray E silicate 2546 1 62 0.341 47 Alkyl 14 Spray Esilicate 2547 1 2.4 3.059 49 Alkyl 18 Spray E silicate

TABLE 129 Percent Diameter of fine- distribution grain Mg solid (peakmetal solution Average diameter) of grains Chemical component phase andAny of diameter Zn metal among Zn content of Alloy Zn—Mg MgZn2, oflater- grains/Zn metal Zn metal grain intermetallic Mg2Zn11, added Znalloy grains grains/ grains/Zn alloy fracture compounds Mg2Zn3,Invention metal (μm) Zn alloy grains surfaces Ave present on MgZn,Example grains Fine Coarse grains (Mass %) or cracks aspect grain Mg7Zn3No (μm) metal metal (Vol %) Zn Mg Al Si present? ratio surfaces?present? 2548 4.52 2.35 9.25 45.02 87.2 12.8 0 0 Yes 1.05 Yes Yes 25495.96 2.12 9.46 47.02 92.2 7.8 0 0 Yes 1.22 No Yes 2550 5.5 2.34 9.467.66 70.5 29.5 0 0 Yes 1.13 No Yes 2551 3.6 2.33 9.46 15.20 91.5 8.5 0 0Yes 1.06 Yes Yes 2552 16.5 2.23 9.06 43.16 74.5 25.5 0 0 Yea 1.05 YesYes 2553 12.5 2.12 9.3 49.33 99.93 0.07 0 0 Yes 1.24 Yes Yes 2554 16.52.21 8.68 19.47 89.2 10.8 0 0 No 1.05 Yes Yes 2555 10.9 1.38 8.53 69.5586 11.2 1.6 1.2 No 1.12 Yes Yes 2556 5.6 1.95 9.32 51.41 75.23 24.5 0.270 Yes 1.38 No Yes 2557 22.6 2.26 8.95 75.88 82.6 17.4 0 0 Yes 1.13 NoYes 2558 20.59 2.05 12.54 48.08 98.7 1.3 0 0 Yes 1.33 Yes Yes 2559 20.591.65 8.7 66.85 80.5 19.5 0 0 Yes 1.27 Yes Yes 2560 9.56 2.35 8.55 7.6888.85 10.8 0.05 0.3 No 1.23 No Yes 2561 5.9 1.62 8.91 8.64 87.7 11.9 0.40 Yes 1.11 Yes Yes 2562 6.54 1.88 9.91 16.58 90.5 9.5 0 0 Yes 1.42 YesYes 2563 21.4 2.35 9.25 35.87 89.5 10.5 0 0 Yes 1.06 No Yes 2564 9.82.57 9.56 42.04 84.9 15.1 0 0 Yes 1.05 Yes Yes 2565 6.59 2.56 9.84 38.4183.2 16.8 0 0 Yes 1.07 Yes Yes 2566 6.54 2.21 9.75 6.99 89.4 10.6 0 0Yes 1.42 No Yes 2567 16.5 2.6 49.85 44.12 84.3 13.3 2.4 0 Yes 1.38 YesYes Ratio of (Zn metal grains or Zn alloy grains):(Later- added Coatingdetails Zn metal Mg Total grains) content metal Zn metal Later- of allgrain Invention grains/ added Zn metal content Coat Corrosion Example Znalloy metal grains of coat Base resin thickness Coating Test No grainsgrains (Mass %) (Mass %) type (μm) method Results 2548 1 2.1 4.129 50Alkali 2 Spray G silicate 2549 1 34.5 0.220 87 Alkyl 37 Spray E silicate2550 1 270 0.109 83 Alkali 12 Spray E silicate 2551 1 32.5 0.254 48Alkyl 160 Brush E silicate 2552 1 3 6.375 51 Alkali 5 Brush G silicate2553 1 1.5 0.028 51 Alkyl 56 Brush E silicate 2554 1 7.5 1.271 87 Alkali2 Spray G silicate 2555 1 13.5 0.772 85 Alkyl 18 Spray E silicate 2556 15 4.083 86 Alkyl 23 Spray E silicate 2557 1 5 2.900 50 Epoxy resin 30Brush E 2558 1 1 0.650 51 Acrylic resin 77 Brush E 2559 1 120 0.161 51Urethane 655 Brush E resin 2560 1 3.7 2.298 80 Polyester 47 Spray Eresin 2561 1 6.1 1.676 46 Epoxy resin 43 Spray E 2562 1 198.5 0.048 51Acrylic resin 52 Brush E 2563 1 2.5 3.000 86 Urethane 20 Brush E resin2564 1 18.5 0.774 85 Polyester 200 Brush E resin 2565 1 8 1.867 82Alkali 22 Spray E silicate 2566 1 1.6 4.077 81 Alkyl 25 Spray E silicate2567 1 1.2 6.045 46 Alkali 14 Spray E silicate

TABLE 130 Percent Diameter of fine- distribution grain Mg solid (peakmetal solution Average diameter) of grains Chemical component phase andAny of diameter Zn metal among Zn content of Alloy Zn—Mg MgZn2, oflater- grains/Zn metal Zn metal grain intermetallic Mg2Zn11, added Znalloy grains grains/ grains/Zn alloy fracture compounds Mg2Zn3,Invention metal (μm) Zn alloy grains surfaces Ave present on MgZn,Example grains Fine Coarse grains (Mass %) or cracks aspect grain Mg7Zn3No (μm) metal metal (Vol %) Zn Mg Al Si present? ratio surfaces?present? 2568 7.8 2.65 8.56 66.99 98.6 1.4 0 0 No 1.22 Yes Yes 2569 16.52.94 8.21 43.38 76.45 23.5 0 0.05 Yes 1.14 Yes Yes 2570 6.54 2.58 8.3339.75 91.1 8.9 0 0 Yes 1.13 Yes Yes 2571 8.45 2.37 8 65.38 85.1 14.9 0 0Yes 1.02 Yes Yes 2572 8.5 2.15 9.22 45.46 77.48 18.4 2.55 1.57 Yes 1.06Yes Yes 2573 13.6 2.96 9.36 22.55 97.9 2.1 0 0 Yes 1.05 Yes Yes 257412.33 2.85 9.45 42.13 94.8 5.2 0 0 Yes 1.24 Yes Yes 2575 16.5 2.94 9.6138.50 84.6 15.4 0 0 Yes 1.33 Yes Yes 2576 7.9 2.11 9.85 64.13 89.3 10.70 0 Yes 1.27 Yes Yes 2577 10.5 2.68 9.23 44.21 83.3 16.7 0 0 Yes 1.05Yes Yes 2578 16.5 2.99 9.08 39.51 80.05 19.6 0.35 0 No 1.12 Yes Yes 257910.64 1.82 9.87 78.64 85.5 14.5 0 0 No 1.23 Yes Yes 2580 10.5 1.42 9.4642.05 85 14.2 0 0.8 No 1.36 Yes Yes 2581 20.59 2.12 9.28 64.58 87.3 12.70 0 No 1.11 Yes Yes 2582 8.5 1.92 9.45 47.76 89.5 10.5 0 0 Yes 1.07 YesYes 2583 0.5 2.11 9.63 24.10 87.3 11.8 0 0.9 Yes 1.42 Yes Yes 2584 10.52.97 9.16 39.11 86.4 12.8 0.5 0.3 Yes 1.38 Yes Yes 2585 11.5 2.36 10.3919.65 93.8 6.2 0 0 Yes 1.22 Yes Yes 2586 36.5 3.05 10.56 65.39 83.8 16.20 0 Yes 1.14 Yes Yes 2587 1.5 2.15 10.74 48.57 80.4 19.6 0 0 Yes 1.13Yes Yes Ratio of (Zn metal grains or Zn alloy grains):(Later- addedCoating details Zn metal Mg Total grains) content metal Zn metal Later-of all grain Invention grains/ added Zn metal content Coat CorrosionExample Zn alloy metal grains of coat Base resin thickness Coating TestNo grains grains (Mass %) (Mass %) type (μm) method Results 2568 1 0.50.933 47 Urethane 112 Spray E resin 2569 1 9 2.350 48 Alkali 24 Spray Esilicate 2570 1 4.5 1.618 51 Urethane 150 Spray E resin 2571 1 136 0.10953 Alkali 18 Spray E silicate 2572 1 13 1.314 88 Alkyl 19 Brush Esilicate 2573 1 10.6 0.181 85 Alkyl 24 Spray E silicate 2574 1 1.6 2.00083 Urethane 99 Spray E resin 2575 1 68 0.223 82 Alkyl 7 Spray E silicate2576 1 4.5 1.945 83 Epoxy resin 100 Spray E 2577 1 10.5 1.452 47 Alkyl27 Brush E silicate 2578 1 4.9 3.322 51 Alkali 15 Spray E silicate 25791 10.5 1.261 52 Alkyl 14 Spray E silicate 2580 1 192 0.074 51 Urethane55 Spray E resin 2581 1 0.07 11.869 52 Alkyl 8 Spray E silicate 2582 19.5 1.000 89 Urethane 122 Brush E resin 2583 1 2.6 3.278 85 Alkyl 54Spray E silicate 2584 1 4.5 2.327 82 Alkali 19 Spray E silicate 2585 1 31.550 87 Alkyl 25 Brush E silicate 2586 1 7.5 1.906 88 Alkyl 58 Spray Esilicate 2587 1 77 0.251 49 Alkyl 21 Spray E silicate

TABLE 131 Percent Diameter of fine- distribution grain Mg solid (peakmetal solution Average diameter) of grains Chemical component phase andAny of diameter Zn metal among Zn content of Alloy Zn—Mg MgZn2, oflater- grains/Zn metal Zn metal grain intermetallic Mg2Zn11, added Znalloy grains grains/ grains/Zn alloy fracture compounds Mg2Zn3,Invention metal (μm) Zn alloy grains surfaces Ave present on MgZn,Example grains Fine Coarse grains (Mass %) or cracks aspect grain Mg7Zn3No (μm) metal metal (Vol %) Zn Mg Al Si present? ratio surfaces?present? 2588 8.7 2.19 10.27 24.91 87.6 12.4 0 0 Yes 1.02 Yes Yes 25897.8 2.48 11.5 39.92 89.3 10.7 0 0 Yes 1.06 Yes Yes 2590 5.96 2.85 11.6722.65 91.5 8.5 0 0 Yes 1.05 Yes Yes 2591 0.06 2.75 11.85 66.20 94.9 5.10 0 Yes 1.24 Yes Yes 2592 0.9 2.46 11.38 49.38 75.5 24.5 0 0 Yes 1.33Yes Yes 2593 3.6 2.71 12.61 30.58 86.5 13.5 0 0 Yes 1.27 Yes Yes 259410.5 2.36 12.78 45.59 80 20 0 0 Yes 1.05 Yes Yes 2595 0.05 2.16 9.5728.32 84.5 15.5 0 0 Yes 1.12 Yes Yes 2596 2.32 2.46 9.81 71.87 88 10.51.5 0 Yes 1.23 Yes Yes 2597 20.4 2.49 8.43 53.05 92.1 7.9 0 0 Yes 1.36Yes Yes 2598 7.34 2.95 8.55 27.74 95.2 4.8 0 0 Yes 1.11 Yes Yes 2599 9.42.36 8.22 42.75 81.6 18.4 0 0 Yes 1.07 Yes Yes 2600 23.43 2.21 9.4423.29 86.8 12.7 0 0.5 Yes 1.42 Yes Yes 2601 5.96 2.25 9.58 61.12 89.710.3 0 0 No 1.38 Yes Yes 2602 10.64 2.44 9.67 44.30 71.2 20.8 8 0 Yes1.22 Yes Yes 2603 16.5 2.78 9.83 23.96 97.5 2.5 0 0 No 1.14 Yes Yes 26047.95 2.15 10.07 44.09 84.8 15.2 0 0 Yes 1.13 Yes Yes 2605 7.95 2.19 9.4524.63 80.8 19.2 0 0 No 1.02 Yes Yes 2606 9.64 2.48 9.3 62.46 78.7 13.57.8 0 Yes 1.06 Yes Yes 2607 0.96 2.59 9.99 45.64 88.1 11.9 0 0 No 1.05Yes Yes Ratio of (Zn metal grains or Zn alloy grains):(Later- addedCoating details Zn metal Mg Total grains) content metal Zn metal Later-of all grain Invention grains/ added Zn metal content Coat CorrosionExample Zn alloy metal grains of coat Base resin thickness Coating TestNo grains grains (Mass %) (Mass %) type (μm) method Results 2588 1 10.51.078 50 Alkali 19 Brush E silicate 2589 1 15.5 0.648 51 Urethane 56Spray E resin 2590 1 5.8 1.250 52 Alkyl 77 Spray E silicate 2591 1 1.91.759 53 Alkyl 12 Spray E silicate 2592 1 16.9 1.369 88 Alkyl 64 Spray Esilicate 2593 1 1.5 5.400 85 Alkyl 34 Brush E silicate 2594 1 0.0519.048 83 Alkali 28 Spray E silicate 2595 1 215 0.072 81 Urethane 109Brush E resin 2596 1 4.2 2.019 80 Alkyl 15 Spray E silicate 2597 1 1.53.160 47 Alkyl 14 Spray E silicate 2598 1 4.8 0.828 49 Alkyl 18 Spray Esilicate 2599 1 0.5 12.267 50 Urethane 122 Brush E resin 2600 1 2.33.848 51 Alkyl 54 Spray E silicate 2601 1 0.05 9.810 52 Alkali 19 SprayE silicate 2602 1 120 0.172 83 Alkyl 25 Brush E silicate 2603 1 3.70.532 88 Alkyl 58 Spray E silicate 2604 1 16.5 0.869 85 Alkyl 21 Spray Esilicate 2605 1 24 0.768 83 Alkali 19 Brush E silicate 2606 1 0.0113.366 82 Urethane 56 Spray E resin 2607 1 7.8 1.352 47 Alkyl 77 Spray Esilicate

TABLE 132 Percent Diameter of fine- distribution grain Mg solid (peakmetal solution Average diameter) of grains Chemical component phase andAny of diameter Zn metal among Zn content of Alloy Zn—Mg MgZn2, oflater- grains/Zn metal Zn metal grain intermetallic Mg2Zn11, added Znalloy grains grains/ grains/Zn alloy fracture compounds Mg2Zn3,Invention metal (μm) Zn alloy grains surfaces Ave present on MgZn,Example grains Fine Coarse grains (Mass %) or cracks aspect grain Mg7Zn3No (μm) metal metal (Vol %) Zn Mg Al Si present? ratio surfaces?present? 2608 5.26 2.47 9.58 25.30 88.5 10.6 0 0.9 Yes 1.24 Yes Yes 260913.5 2.69 9.4 42.84 84.6 15.4 0 0 Yes 1.33 Yes Yes 2610 13.5 2.57 9.5725.44 97.4 2.6 0 0 Yes 1.27 Yes Yes 2611 9.64 2.49 9.54 63.27 83.3 16.70 0 Yes 1.37 Yes Yes 2612 16.5 2.68 9.58 46.45 91.9 8.1 0 0 Yes 1.10 YesYes 2613 20.59 2.35 9.25 46.45 86.3 13.7 0 0 Yes 1.04 Yes Yes 2614 0.962.48 10.04 50.91 81.5 18.5 0 0 Yes 1.02 Yes Yes 2615 6.54 2.13 11.2727.25 97.6 2.4 0 0 Yes 1.01 Yes Yes 2616 5.26 1.93 11.44 42.26 89.1 10.90 0 Yes 1.08 Yes Yes 2617 10.64 2.05 8.9 33.69 92.8 7.2 0 0 Yes 1.14 YesYes 2618 9.64 1.42 8.75 48.70 81.96 17.5 0.5 0.04 No 1.23 Yes Yes 26196.9 1.46 9.44 29.24 85.4 14.6 0 0 No 1.33 Yes Yes 2620 10.5 1.75 9.0367.07 90.6 9.4 0 0 Yes 1.37 Yes Yes 2621 13.5 1.86 8.85 50.25 92.9 7.1 00 Yes 1.44 Yes Yes 2622 20.59 1.74 8.95 29.91 77.5 22.5 0 0 Yes 1.21 YesYes 2623 7.82 1.96 12.54 87.50 84.8 13.7 1.5 0 No 1.22 Yes Yes 2624 5.261.65 8.7 30.58 87.1 12.9 0 0 No 1.23 Yes Yes 2625 7.06 2.35 8.55 68.4195.7 4.3 0 0 Yes 1.47 Yes Yes 2626 0.64 1.62 10.72 54.59 80.2 17.6 1 1.2No 1.01 Yes Yes Ratio of (Zn metal grains or Zn alloy grains):(Later-added Coating details Zn metal Mg Total grains) content metal Zn metalLater- of all grain Invention grains/ added Zn metal content CoatCorrosion Example Zn alloy metal grains of coat Base resin thicknessCoating Test No grains grains (Mass %) (Mass %) type (μm) method Results2608 1 1.6 4.077 46 Alkyl 54 Spray E silicate 2609 1 3.2 3.667 49 Alkali2 Spray G silicate 2610 1 5.4 0.406 50 Alkali 20 Spray E silicate 2611 1220 0.076 51 Alkali 5 Spray G silicate 2612 1 2.2 2.531 83 Alkyl 20Spray E silicate 2613 1 2.8 3.605 82 Alkali 15 Brush E silicate 2614 112 1.423 88 Alkyl 57 Brush E silicate 2615 1 10.6 0.207 85 Alkali 13Brush E silicate 2616 1 35 0.303 86 Alkyl 22 Brush E silicate 2617 1125.5 0.057 47 Alkali 20 Spray E silicate 2618 1 6 2.500 48 Alkyl 27Spray E silicate 2619 1 34 0.417 50 Alkali 15 Spray E silicate 2620 11.6 3.615 51 Alkyl 35 Spray E silicate 2621 1 7.5 0.835 52 Alkali 34Brush E silicate 2622 1 200 0.112 88 Alkyl 45 Brush E silicate 2623 17.5 1.612 89 Alkali 52 Brush E silicate 2624 1 3.2 3.071 86 Alkyl 23Brush E silicate 2625 1 2.6 1.194 87 Alkali 23 Spray E silicate 2626 1 34.400 86 Alkyl 52 Brush E silicate

TABLE 133 Percent Diameter of fine- distribution grain Mg solid (peakmetal solution Average diameter) of grains Chemical component phase andAny of diameter Zn metal among Zn content of Alloy Zn—Mg MgZn2, oflater- grains/Zn metal Zn metal grain intermetallic Mg2Zn11, added Znalloy grains grains/ grains/Zn alloy fracture compounds Mg2Zn3,Invention metal (μm) Zn alloy grains surfaces Ave present on MgZn,Example grains Fine Coarse grains (Mass %) or cracks aspect grain Mg7Zn3No (μm) metal metal (Vol %) Zn Mg Al Si present? ratio surfaces?present? 2627 46.8 2.25 9.9 34.25 98.8 0.6 0.6 0 Yes 1.04 Yes Yes 262816.5 2.36 9.57 37.61 86.9 10.3 1.6 1.2 Yes 1.05 Yes Yes 2629 13.5 2.2410.79 45.60 92.98 7 0.02 0 Yes 1.12 Yes Yes 2630 0.96 2.46 10.93 46.7075.5 23.5 1 0 Yes 1.11 Yes Yes 2631 0.96 1.56 11.02 41.22 82.5 17.5 0 0No 1.08 Yes Yes 2632 8.45 1.24 11.18 45.68 80.1 12.4 7.5 0 Yes 1.47 YesYes 2633 2.9 1.68 11.42 22.02 85.09 14.9 0 0.01 Yes 1.50 Yes Yes 26345.4 2.65 10.8 37.03 78.7 20.7 0 0.6 No 1.13 Yes Yes 2635 10.6 2.22 10.6528.46 91.29 8.6 0 0.11 Yes 1.26 Yes Yes 2636 2.32 2.45 11.34 43.47 85.814.2 0 0 Yes 1.14 Yes Yes 2637 7.8 2.23 11.62 35.19 98.12 0.08 0 1.8 Yes1.49 Yes Yes 2638 7.95 2.26 11.15 73.02 83.46 15.2 0 1.34 No 1.34 YesYes 2639 20.59 2.72 12.38 56.20 73.17 17.4 9 0.43 Yes 1.18 Yes Yes 264022.5 2.13 12.55 35.86 98.6 0.8 0.6 0 Yes 1.17 Yes Yes 2641 4.6 1.98 9.3493.45 93.55 6.4 0.05 0 Yes 1.48 Yes Yes 2642 4.9 2.02 9.58 30.66 96.783.2 0.02 0 No 1.49 Yes Yes 2643 10.5 2.21 9.88 74.21 83 9.2 7.8 0 Yes1.27 Yes Yes 2644 8.45 2.55 10 55.39 70.92 19.2 9.88 0 Yes 1.17 Yes Yes2645 30.5 1.92 10.67 30.08 80.25 15.1 4.65 0 Yes 1.16 Yes Yes 2646 49.51.96 11.89 45.09 81.85 14.5 3.65 0 Yes 1.27 Yes Yes 2647 5.9 2.11 12.0341.41 89.45 10.5 0.05 0 Yes 1.27 Yes Yes Ratio of (Zn metal grains or Znalloy grains):(Later- added Coating details Zn metal Mg Total grains)content metal Zn metal Later- of all grain Invention grains/ added Znmetal content Coat Corrosion Example Zn alloy metal grains of coat Baseresin thickness Coating Test No grains grains (Mass %) (Mass %) type(μm) method Results 2627 1 15.2 0.037 46 Alkali 150 Brush E silicate2628 1 0.09 9.450 49 Alkyl 60 Brush E silicate 2629 1 13.5 0.483 35Alkali 15 Spray E silicate 2630 1 135.4 0.172 37 Alkyl 24 Spray Esilicate 2631 1 3 4.375 36 Alkali 34 Spray E silicate 2632 1 7.8 1.40938 Alkyl 20 Brush E silicate 2633 1 10.2 1.330 48 Alkali 200 Brush Esilicate 2634 1 7 2.588 46 Alkyl 56 Brush E silicate 2635 1 225.2 0.03851 Alkali 34 Spray E silicate 2636 1 5.4 2.219 46 Alkyl 2 Spray Gsilicate 2637 1 3.2 0.019 38 Alkali 15 Spray E silicate 2638 1 13.51.048 48 Alkali 10 Spray E silicate 2639 1 1.6 6.692 52 Alkyl 125 BrushE silicate 2640 1 1.5 0.320 30 Alkali 24 Brush E silicate 2641 1 2.51.829 76 Alkyl 110 Brush E silicate 2642 1 2.6 0.889 72 Alkali 24 BrushE silicate 2643 1 126 0.072 81 Alkyl 2 Spray G silicate 2644 1 120 0.15964 Alkali 37 Spray E silicate 2645 1 7.5 1.776 69 Alkyl 113 Brush Esilicate 2646 1 6.5 1.933 83 Alkali 2 Spray G silicate 2647 1 2.0 0.50030 Alkyl 75 Brush E silicate

TABLE 134 Percent Diameter of fine- distribution grain Mg solid (peakmetal solution Average diameter) of grains Chemical component phase andAny of diameter Zn metal among Zn content of Alloy Zn—Mg MgZn2, oflater- grains/Zn metal Zn metal grain intermetallic Mg2Zn11, added Znalloy grains grains/ grains/Zn alloy fracture compounds Mg2Zn3,Invention metal (μm) Zn alloy grains surfaces Ave present on MgZn,Example grains Fine Coarse grains (Mass %) or cracks aspect grain Mg7Zn3No (μm) metal metal (Vol %) Zn Mg Al Si present? ratio surfaces?present? 2648 4.52 2.97 12.12 17.75 87.3 7.5 5.2 0 Yes 1.49 Yes Yes 26495.96 2.36 12.28 32.76 93.9 6.1 0 0.001 Yes 1.29 Yes Yes 2650 5.5 3.0512.52 30.89 82.55 16.8 0.05 0.6 Yes 1.23 Yes Yes 2651 3.6 2.57 11.945.90 70.7 27.5 1 0.8 Yes 1.23 Yes Yes 2652 16.5 2.65 11.75 42.22 94.62.9 0 2.5 Yes 1.23 Yes Yes 2653 12.5 2.54 12.44 18.56 94 4.5 0 1.5 No1.23 Yes Yes 2654 16.5 2.85 12.03 33.57 99.43 0.07 0 0.5 Yes 1.27 YesYes 2655 10.9 2.75 10.61 31.70 96.82 3.1 0.04 0.04 Yes 1.23 Yes Yes 26565.6 2.46 11.3 46.71 76.3 20.5 1 2.2 Yes 1.36 Yes Yes 2657 22.6 2.7111.58 47.89 68.84 29.5 0.06 1.6 Yes 1.11 Yes Yes 2658 20.59 2.36 11.1124.23 92.33 7.6 0.07 0 Yes 1.02 Yes Yes 2659 20.59 2.16 12.34 39.24 95.20.7 1.2 2.9 Yes 1.05 Yes Yes 2660 9.56 2.46 12.51 37.37 91.8 4.6 1.8 1.8Yes 1.24 Yes Yes 2661 5.9 2.49 11.64 50.38 82 8.3 9.2 0.5 Yes 1.33 YesYes 2662 6.54 1.63 9.16 37.14 88.2 11.8 0 0 Yes 1.27 Yes Yes 2663 21.41.51 9.46 13.48 86.06 12.9 0 1.04 Yes 1.50 Yes Yes 2664 9.8 3.05 9.5440.05 99.34 0.6 0 0.06 Yes 1.13 Yes Yes 2665 6.59 2.57 9.56 38.18 89.519.5 0 0.99 No 1.04 Yes Yes 2666 6.54 2.65 9.46 7.63 88.3 11.7 0 0 Yes1.02 Yes Yes 2667 16.5 2.54 11.99 37.95 89.9 9.4 0.7 0 Yes 1.08 Yes YesRatio of (Zn metal grains or Zn alloy grains):(Later- added Coatingdetails Zn metal Mg Total grains) content metal Zn metal Later- of allgrain Invention grains/ added Zn metal content Coat Corrosion Example Znalloy metal grains of coat Base resin thickness Coating Test No grainsgrains (Mass %) (Mass %) type (μm) method Results 2648 1 0.007 7.448 83Alkali 30 Brush E silicate 2649 1 9 0.610 75 Alkyl 34 Brush E silicate2650 1 7.5 1.976 76 Epoxy resin 124 Brush E 2651 1 50 0.539 72 Acrylicresin 15 Spray E 2652 1 0.005 2.886 71 Urethane 23 Spray E resin 2653 125.6 0.169 82 Polyester 157 Brush E resin 2654 1 56.5 0.001 81 Epoxyresin 26 Spray E 2655 1 1.6 1.192 83 Acrylic resin 38 Spray E 2656 1 35.125 50 Urethane 160 Brush E resin 2657 1 100 0.292 72 Polyester 27Brush E resin 2658 1 65.5 0.114 47 Epoxy resin 180 Brush E 2659 1 1.90.241 47 Acrylic resin 26 Spray E 2660 1 2.1 1.484 52 Urethane 180 BrushE resin 2661 1 10.5 0.722 52 Polyester 15 Spray E resin 2662 1 6.5 1.57350 Epoxy resin 2 Spray G 2663 1 19.5 0.629 46 Acrylic resin 28 Spray E2664 1 0.8 0.333 47 Urethane 30 Spray E resin 2665 1 18.5 0.487 83Polyester 2 Spray G resin 2666 1 4.3 2.208 52 Epoxy resin 157 Brush E2667 1 3.2 2.238 89 Acrylic resin 28 Brush E

TABLE 135 Percent Diameter of fine- distribution grain Mg solid (peakmetal solution Average diameter) of grains Chemical component phase andAny of diameter Zn metal among Zn content of Alloy Zn—Mg MgZn2, oflater- grains/Zn metal Zn metal grain intermetallic Mg2Zn11, added Znalloy grains grains/ grains/Zn alloy fracture compounds Mg2Zn3,Invention metal (μm) Zn alloy grains surfaces Ave present on MgZn,Example grains Fine Coarse grains (Mass %) or cracks aspect grain Mg7Zn3No (μm) metal metal (Vol %) Zn Mg Al Si present? ratio surfaces?present? 2668 7.8 2.85 12.08 14.29 87.8 11.7 0.5 0 Yes 1.15 Yes Yes 266916.5 2.75 12.24 40.86 95.6 4.2 0.2 0 Yes 1.34 Yes Yes 2670 6.54 2.4612.48 97.50 97.13 2.8 0.07 0 Yes 1.25 Yes Yes 2671 8.45 2.71 11.86 13.3086.1 13.9 0 0 Yes 1.19 Yes Yes 2672 8.5 2.36 11.71 43.62 82.6 14.6 1.61.2 No 1.18 Yes Yes 2673 13.6 2.46 11.35 56.93 72.95 26.4 0.65 0 Yes1.24 Yes Yes 2674 12.33 1.45 12.02 36.59 83.23 16.5 0.27 0 Yes 1.11 YesYes 2675 16.5 2.42 13.24 39.95 79.4 19.5 0.45 0.65 Yes 1.27 Yes Yes 26767.9 2.11 9.46 86.50 97.08 1.6 0.33 0.99 Yes 1.31 Yes Yes 2677 10.5 2.9713.47 32.87 90.5 6 1 2.5 Yes 1.26 Yes Yes 2678 16.5 2.36 9.46 16.2388.93 8.4 0.87 1.8 Yes 1.14 Yes Yes 2679 10.64 3.05 13.87 37.40 86.713.3 0 0 Yes 1.34 Yes Yes 2680 10.5 2.57 13.25 40.76 81.4 18.6 0. 0 Yes1.16 Yes Yes 2681 20.59 2.65 13.1 87.31 97.34 1.8 0.86 0 No 1.47 Yes Yes2682 8.5 2.12 9.08 92.50 95.25 4.1 0.65 0 Yes 1.48 Yes Yes 2683 0.5 1.659.87 17.93 82.87 16.7 0.43 0 No 1.49 Yes Yes 2684 10.5 2.35 9.46 44.5099 0.4 0.6 0 Yes 1.34 Yes Yes 2685 11.5 1.63 9.28 96.50 89.35 10.6 0.050 Yes 1.29 Yes Yes 2686 36.5 2.64 9.45 16.94 93.08 6.9 0.02 0 Yes 1.18Yes Yes Ratio of (Zn metal grains or Zn alloy grains):(Later- addedCoating details Zn metal Mg Total grains) content metal Zn metal Later-of all grain Invention grains/ added Zn metal content Coat CorrosionExample Zn alloy metal grains of coat Base resin thickness Coating TestNo grains grains (Mass %) (Mass %) type (μm) method Results 2668 1 1.54.680 85 Alkyl 130 Brush E silicate 2669 1 4.5 0.764 53 Alkyl 29 Brush Esilicate 2670 1 15.5 0.170 88 Epoxy resin 30 Brush E 2671 1 10.5 1.20985 Acrylic resin 120 Brush E 2672 1 2.5 4.171 52 Urethane 187 Brush Eresin 2673 1 9 2.640 83 Polyester 28 Spray E resin 2674 1 10.5 0.156 88Epoxy resin 5 Spray E 2675 1 5.7 2.910 49 Acrylic resin 35 Spray E 26761 3.9 0.327 50 Urethane 5 Spray G resin 2677 1 4.5 1.091 51 Polyester200 Brush E resin 2678 1 3.6 1.826 83 Alkali 25 Spray E silicate 2679 116.4 0.764 82 Alkali 15 Spray E silicate 2680 1 6 2.657 88 Alkyl 20Spray E silicate 2681 1 7.5 0.212 85 Alkali 18 Spray E silicate 2682 110.5 0.357 87 Alkyl 22 Spray E silicate 2683 1 2.6 4.639 86 Alkali 19Spray E silicate 2684 1 1.5 0.160 46 Alkyl 29 Spray E silicate 2685 113.5 0.731 49 Alkali 23 Spray E silicate 2686 1 2.6 1.917 35 Alkyl 21Spray E silicate

TABLE 136 Percent Diameter of fine- distribution grain Mg solid (peakmetal solution Average diameter) of grains Chemical component phase andAny of diameter Zn metal among Zn content of Alloy Zn—Mg MgZn2, oflater- grains/Zn metal Zn metal grain intermetallic Mg2Zn11, added Znalloy grains grains/ grains/Zn alloy fracture compounds Mg2Zn3,Invention metal (μm) Zn alloy grains surfaces Ave present on MgZn,Example grains Fine Coarse grains (Mass %) or cracks aspect grain Mg7Zn3No (μm) metal metal (Vol %) Zn Mg Al Si present? ratio surfaces?present? 2687 1.5 2.35 9.25 88.12 99.82 0.05 0.06 0.07 Yes 1.48 Yes Yes2688 8.7 2.31 9.46 60.57 91.56 6.4 1.05 0.99 Yes 1.27 Yes Yes 2689 7.82.62 9.46 39.48 93.36 3.5 2.6 0.54 Yes 1.17 Yes Yes 2690 5.96 2.52 9.4615.82 82.13 17.5 0.05 0.32 Yes 1.27 Yes Yes 2691 0.06 2.24 13.32 49.5791.2 3.6 5.2 0 No 1.27 Yes Yes 2692 0.9 0.05 6.54 86.52 94.1 5.9 0 0.001Yes 1.48 Yes Yes 2693 3.6 2.42 6.35 90.98 83.2 16.2 0 0.6 No 1.49 YesYes 2694 10.5 0.11 7.54 67.32 76.7 22.5 0 0.8 Yes 1.34 Yes Yes 2695 0.051.92 8.64 82.33 96.52 3.4 0.04 0.04 Yes 1.23 Yes Yes 2696 2.32 0.46 6.4573.76 68.3 26.5 3 2.2 Yes 1.23 Yes Yes 2697 20.4 0.77 6.48 88.77 72.8425.5 0.06 1.6 Yes 1.23 Yes Yes 2698 8.6 2.35 9.25 45.02 87.2 12.8 0 0Yes 1.05 Yes Yes 2699 10.5 2.33 9.46 15.2 91.5 8.5 0 0 Yes 1.06 Yes Yes2700 8.7 1.95 9.32 51.41 75.23 24.5 0.27 0 Yes 1.38 Yes Yes 2701 7.82.15 9.22 45.46 77.48 18.4 2.55 1.57 Yes 1.06 Yes Yes 2702 5.96 2.2311.62 35.19 72.62 0.08 25.5 1.8 Yes 1.49 Yes Yes 2703 1.6 2.26 11.1573.02 64.06 15.2 19.4 1.34 No 1.34 Yes Yes 2704 7.2 1.98 9.34 93.45 836.4 10.6 0 Yes 1.48 Yes Yes 2705 10.5 2.02 9.58 30.66 86.4 3.2 10.4 0 No1.49 Yes Yes 2706 3.6 2.36 12.28 32.76 80.4 6.1 13.5 0.001 Yes 1.29 YesYes 2707 4.5 3.05 12.52 30.89 70.1 16.8 12.5 0.6 Yes 1.23 Yes Yes 27087.9 2.57 11.9 45.9 60.9 27.5 10.8 0.8 Yes 1.23 Yes Yes Ratio of (Znmetal grains or Zn alloy grains):(Later- added Coating details Zn metalMg Total grains) content metal Zn metal Later- of all grain Inventiongrains/ added Zn metal content Coat Corrosion Example Zn alloy metalgrains of coat Base resin thickness Coating Test No grains grains (Mass%) (Mass %) type (μm) method Results 2687 1 6.5 0.007 30 Alkali 19 SprayE silicate 2688 1 1.6 2.462 76 Alkyl 15 Spray E silicate 2689 1 3.80.729 72 Alkali 18 Spray E silicate 2690 1 0.08 16.204 30 Alkyl 22 SprayE silicate 2691 1 164.5 0.022 83 Alkyl 21 Spray E silicate 2692 1 3.61.283 75 Alkyl 29 Spray E silicate 2693 1 8.6 1.688 76 Alkali 23 Spray Esilicate 2694 1 12 1.731 72 Alkyl 21 Spray E silicate 2695 1 5.8 0.50083 Alkali 19 Spray E silicate 2696 1 10 2.409 50 Alkyl 21 Spray Esilicate 2697 1 1 12.750 72 Alkali 19 Spray E silicate 2698 1 10.5 1.11350 Acrylic resin 654 Spray E 2699 1 6.5 1.133 48 Alkali 700 Spray Esilicate 2700 1 19.5 1.195 75 Alkyl 555 Spray E silicate 2701 1 0.810.222 55 Alkyl 12 Spray E silicate 2702 1 5.3 0.013 38 Alkyl 678 BrushE silicate 2703 1 4.3 2.868 48 Urethane 674 Spray E resin 2704 1 3.21.524 76 Polyester 325 Spray E resin 2705 1 1.5 1.280 72 Alkyl 665 SprayE silicate 2706 1 4.5 1.109 75 Alkyl 354 Brush E silicate 2707 1 0.89.333 76 Alkyl 165 Spray E silicate 2708 1 6.5 3.667 72 Urethane 354Spray E resin

TABLE 137 Percent Diameter of fine- distribution grain Mg solid (peakmetal solution Average diameter) of grains Chemical component phase andAny of diameter Zn metal among Zn content of Alloy Zn—Mg MgZn2, oflater- grains/Zn metal Zn metal grain intermetallic Mg2Zn11, added Znalloy grains grains/ grains/Zn alloy fracture compounds Mg2Zn3,Invention metal (μm) Zn alloy grains surfaces Average present on MgZn,Example grains Fine Coarse grains (Mass %) or cracks aspect grain Mg7Zn3No (μm) metal metal (Vol %) Zn Mg Al Si present? ratio surfaces?present? 2709 16..5 2.35 9.25 35.87 88.8 11.2 0 0 Yes 1.12 Yes Yes 271013.5 2.57 9.56 42.04 90.6 9.4 0 0 No 1.38 Yes Yes 2711 0.96 2.56 9.846.55 81.45 18.5 0 0.05 Yes 1.22 Yes Yes 2712 0.96 2.21 9.75 43.60 99.970.03 0 0 Yes 1.14 Yes Yes 2713 8.45 2.64 9.85 44.12 98.4 1.6 0 0 No 1.02Yes Yes 2714 2.9 1.99 8.56 37.21 93.2 6.8 0 0 Yes 1.05 Yes Yes 2715 5.42.94 8.21 43.38 84.5 13.9 0 1.6 No 1.36 No Yes 2716 10.6 2.58 8.33 13.5298.1 1.9 0 0 Yes 1.11 No Yes 2717 2.32 2.37 8 44.94 94.3 5.7 0 0 No 1.07Yes Yes 2718 7.8 2.15 9.22 45.46 90.8 9.2 0 0 No 1.42 Yes Yes 2719 7.952.96 9.36 35.96 83.3 15.4 0 1.3 Yes 1.38 No Yes 2720 20.59 2.85 9.4542.13 79.84 18.6 0 1.56 Yes 1.22 No Yes 2721 22.5 2.94 9.61 7.56 96.43.6 0 0 Yes 1.14 Yes Yes 2722 4.6 2.11 9.85 43.69 94.6 5.4 0 0 Yes 1.13Yes Yes 2723 4.9 2.68 9.23 44.21 92.4 7.6 0 0 Yes 1.02 No Yes 2724 10.52.99 9.08 39.51 75.5 24.5 0 0 Yes 1.06 Yes Yes 2725 8.45 2.78 9.87 45.6882.4 17.6 0 0 Yes 1.05 Yes Yes 2726 30.5 2.96 9.46 65.58 98.6 1.4 0 0Yes 1.24 No Yes 2727 49.5 2.85 9.28 47.24 78.5 21.5 0 0 Yes 1.33 No Yes2728 5.9 2.64 9.45 47.76 89.6 10.4 0 0 Yes 1.27 Yes Yes Ratio of (Znmetal grains or Zn alloy grains):(Later- added Coating details Zn metalMg Total grains) content metal Zn metal Later- of all grain InventionNumber grains/ added Zn metal content Coat Corrosion Example of Zn alloymetal grains of coat Base resin thickness Coating Test No faces grainsgrains (Mass %) (Mass %) type (μm) method Results 2709 2 1 5 1.867 49Alkyl 14 Spray E silicate 2710 2 1 198.7 0.047 89 Urethane 55 Spray Eresin 2711 2 1 36 0.500 90 Alkyl 8 Spray E silicate 2712 2 1 1.5 0.01286 Urethane 122 Brush E resin 2713 6 1 0.008 1.587 48 Alkyl 555 Spray Esilicate 2714 6 1 1.4 2.833 47 Alkali 19 Spray E silicate 2715 7 1 4.22.673 47 Alkyl 25 Brush E silicate 2716 6 1 1.6 0.731 47 Alkyl 58 SprayE silicate 2717 2 1 7.5 0.671 52 Alkyl 685 Spray E silicate 2718 7 1 1.63.538 52 Alkali 19 Brush E silicate 2719 2 1 2 5.133 52 Urethane 700Spray E resin 2720 6 1 270 0.069 88 Alkyl 77 Spray E silicate 2721 6 17.5 0.424 87 Alkyl 54 Spray E silicate 2722 2 1 2.9 1.385 89 Alkyl 64Spray E silicate 2723 2 1 2.6 2.111 90 Alkyl 34 Brush E silicate 2724 71 0.1 22.273 91 Alkali 28 Spray E silicate 2725 6 1 1.2 8.000 46Urethane 109 Brush E resin 2726 7 1 1.2 0.636 47 Alkyl 15 Spray Esilicate 2727 2 1 62 0.341 47 Alkyl 14 Spray E silicate 2728 7 1 2.43.059 49 Alkyl 18 Spray E silicate

TABLE 138 Percent Diameter of fine- distribution grain Mg solid (peakmetal solution Average diameter) of grains Chemical component phase andAny of diameter Zn metal among Zn content of Alloy Zn—Mg MgZn2, oflater- grains/Zn metal Zn metal grain intermetallic Mg2Zn11, added Znalloy grains grains/ grains/Zn alloy fracture compounds Mg2Zn3,Invention metal (μm) Zn alloy grains surfaces Average present on MgZn,Example grains Fine Coarse grains (Mass %) or cracks aspect grain Mg7Zn3No (μm) metal metal (Vol %) Zn Mg Al Si present? ratio surfaces?present? 2729 4.52 2.35 9.25 45.02 87.2 12.8 0 0 Yes 1.05 Yes Yes 27305.96 2.12 9.46 47.02 92.2 7.8 0 0 Yes 1.22 No Yes 2731 5.5 2.34 9.467.66 70.5 29.5 0 0 Yes 1.13 No Yes 2732 3.6 2.33 9.46 15.20 91.5 8.5 0 0Yes 1.06 Yes Yes 2733 16.5 2.23 9.06 43.16 74.5 25.5 0 0 Yes 1.05 YesYes 2734 12.5 2.12 9.3 49.33 99.93 0.07 0 0 Yes 1.24 Yes Yes 2735 16.52.21 8.68 19.47 89.2 10.8 0 0 No 1.05 Yes Yes 2736 10.9 1.38 8.53 69.5586 11.2 1.6 1.2 No 1.12 Yes Yes 2737 5.6 1.95 9.32 51.41 75.23 24.5 0.270 Yes 1.38 No Yes 2738 22.6 2.26 8.95 75.88 82.6 17.4 0 0 Yes 1.13 NoYes 2739 20.59 2.05 12.54 48.08 98.7 1.3 0 0 Yes 1.33 Yes Yes 2740 20.591.65 8.7 66.85 80.5 19.5 0 0 Yes 1.27 Yes Yes 2741 9.56 2.35 8.55 7.6888.85 10.8 0.05 0.3 No 1.23 No Yes 2742 5.9 1.62 8.91 8.64 87.7 11.9 0.40 Yes 1.11 Yes Yes 2743 6.54 1.88 9.91 16.58 90.5 9.5 0 0 Yes 1.42 YesYes 2744 21.4 2.35 9.25 35.87 89.5 10.5 0 0 Yes 1.06 No Yes 2745 9.82.57 9.56 42.04 84.9 15.1 0 0 Yes 1.05 Yes Yes 2746 6.59 2.56 9.84 38.4183.2 16.8 0 0 Yes 1.07 Yes Yes 2747 6.54 2.21 9.75 6.99 89.4 10.6 0 0Yes 1.42 No Yes 2748 16.5 2.64 9.85 44.12 84.3 13.3 2.4 0 Yes 1.38 YesYes Ratio of (Zn metal grains or Zn alloy grains):(Later- added Coatingdetails Zn metal Mg Total grains) content metal Zn metal Later- of allgrain Invention Number grains/ added Zn metal content Coat CorrosionExample of Zn alloy metal grains of coat Base resin thickness CoatingTest No faces grains grains (Mass %) (Mass %) type (μm) method Results2729 6 1 2.1 4.129 50 Alkali 2 Spray G silicate 2730 7 1 34.5 0.220 87Alkyl 37 Spray E silicate 2731 6 1 270 0.109 83 Alkali 12 Spray Esilicate 2732 7 1 32.5 0.254 48 Alkyl 160 Brush E silicate 2733 6 1 36.375 51 Alkali 5 Brush G silicate 2734 2 1 1.5 0.028 51 Alkyl 56 BrushE silicate 2735 7 1 7.5 1.271 87 Alkali 2 Spray G silicate 2736 6 1 13.50.772 85 Alkyl 18 Spray E silicate 2737 6 1 5 4.083 86 Alkyl 23 Spray Esilicate 2738 6 1 5 2.900 50 Epoxy resin 30 Brush E 2739 2 1 1 0.650 51Acrylic resin 77 Brush E 2740 6 1 120 0.161 51 Urethane 655 Brush Eresin 2741 7 1 3.7 2.298 80 Polyester 47 Spray E resin 2742 2 1 6.11.676 46 Epoxy resin 43 Spray E 2743 6 1 198.5 0.048 51 Acrylic resin 52Brush E 2744 2 1 2.5 3.000 86 Urethane 20 Brush E resin 2745 6 1 18.50.774 85 Polyester 200 Brush E resin 2746 7 1 8 1.867 82 Alkali 22 SprayE silicate 2747 7 1 1.6 4.077 81 Alkyl 25 Spray E silicate 2748 2 1 1.26.045 46 Alkali 14 Spray E silicate

TABLE 139 Percent Diameter of fine- distribution grain Mg solid (peakmetal solution Average diameter) of grains Chemical component phase andAny of diameter Zn metal among Zn content of Alloy Zn—Mg MgZn2, oflater- grains/Zn metal Zn metal grain intermetallic Mg2Zn11, added Znalloy grains grains/ grains/Zn alloy fracture compounds Mg2Zn3,Invention metal (μm) Zn alloy grains surfaces Average present on MgZn,Example grains Fine Coarse grains (Mass %) or cracks aspect grain Mg7Zn3No (μm) metal metal (Vol %) Zn Mg Al Si present? ratio surfaces?present? 2749 7.8 2.65 8.56 66.99 98.6 1.4 0 0 No 1.22 Yes Yes 2750 16.52.94 8.21 43.38 76.45 23.5 0 0.05 Yes 1.14 Yes Yes 2751 6.54 2.58 8.3339.75 91.1 8.9 0 0 Yes 1.13 Yes Yes 2752 8.45 2.37 8 65.38 85.1 14.9 0 0Yes 1.02 Yes Yes 2753 8.5 2.15 9.22 45.46 77.48 18.4 2.55 1.57 Yes 1.06Yes Yes 2754 13.6 2.96 9.36 22.55 97.9 2.1 0 0 Yes 1.05 Yes Yes 275512.33 2.85 9.45 42.13 94.8 5.2 0 0 Yes 1.24 Yes Yes 2756 16.5 2.94 9.6138.50 84.6 15.4 0 0 Yes 1.33 Yes Yes 2757 7.9 2.11 9.85 64.13 89.3 10.70 0 Yes 1.27 Yes Yes 2758 10.5 2.68 9.23 44.21 83.3 16.7 0 0 Yes 1.05Yes Yes 2759 16.5 2.99 9.08 39.51 80.05 19.6 0.35 0 No 1.12 Yes Yes 276010.64 1.82 9.87 78.64 85.5 14.5 0 0 No 1.23 Yes Yes 2761 10.5 1.42 9.4642.05 85 14.2 0 0.8 No 1.36 Yes Yes 2762 20.59 2.12 9.28 64.58 87.3 12.70 0 No 1.11 Yes Yes 2763 8.5 1.92 9.45 47.76 89.5 10.5 0 0 Yes 1.07 YesYes 2764 0.5 2.11 9.63 24.10 87.3 11.8 0 0.9 Yes 1.42 Yes Yes 2765 10.52.97 9.16 39.11 86.4 12.8 0.5 0.3 Yes 1.38 Yes Yes 2766 11.5 2.36 10.3919.65 93.8 6.2 0 0 Yes 1.22 Yes Yes 2767 36.5 3.05 10.56 65.39 83.8 16.20 0 Yes 1.14 Yes Yes 2768 1.5 2.15 10.74 48.57 80.4 19.6 0 0 Yes 1.13Yes Yes Ratio of (Zn metal grains or Zn alloy grains):(Later- addedCoating details Zn metal Mg Total grains) content metal Zn metal Later-of all grain Invention Number grains/ added Zn metal content CoatCorrosion Example of Zn alloy metal grains of coat Base resin thicknessCoating Test No faces grains grains (Mass %) (Mass %) type (μm) methodResults 2749 2 1 0.5 0.933 47 Urethane 112 Spray E resin 2750 6 1 92.350 48 Alkali 24 Spray E silicate 2751 7 1 4.5 1.618 51 Urethane 150Spray E resin 2752 6 1 136 0.109 53 Alkali 18 Spray E silicate 2753 7 113 1.314 88 Alkyl 19 Brush E silicate 2754 6 1 10.6 0.181 85 Alkyl 24Spray E silicate 2755 2 1 1.6 2.000 83 Urethane 99 Spray E resin 2756 21 68 0.223 82 Alkyl 7 Spray E silicate 2757 6 1 4.5 1.945 83 Epoxy resin100 Spray E 2758 7 1 10.5 1.452 47 Alkyl 27 Brush E silicate 2759 6 14.9 3.322 51 Alkali 15 Spray E silicate 2760 6 1 10.5 1.261 52 Alkyl 14Spray E silicate 2761 2 1 192 0.074 51 Urethane 55 Spray E resin 2762 71 0.07 11.869 52 Alkyl 8 Spray E silicate 2763 2 1 9.5 1.000 89 Urethane122 Brush E resin 2764 2 1 2.6 3.278 85 Alkyl 54 Spray E silicate 2765 61 4.5 2.327 82 Alkali 19 Spray E silicate 2766 7 1 3 1.550 87 Alkyl 25Brush E silicate 2767 7 1 7.5 1.906 88 Alkyl 58 Spray E silicate 2768 61 77 0.251 49 Alkyl 21 Spray E silicate

TABLE 140 Percent Diameter of fine- distribution grain Mg solid (peakmetal solution Average diameter) of grains Chemical component phase andAny of diameter Zn metal among Zn content of Alloy Zn—Mg MgZn2, oflater- grains/Zn metal Zn metal grain intermetallic Mg2Zn11, added Znalloy grains grains/ grains/Zn alloy fracture compounds Mg2Zn3,Invention metal (μm) Zn alloy grains surfaces Average present on MgZn,Example grains Fine Coarse grains (Mass %) or cracks aspect grain Mg7Zn3No (μm) metal metal (Vol %) Zn Mg Al Si present? ratio surfaces?present? 2769 8.7 2.19 10.27 24.91 87.6 12.4 0 0 Yes 1.02 Yes Yes 27707.8 2.48 11.5 39.92 89.3 10.7 0 0 Yes 1.06 Yes Yes 2771 5.96 2.85 11.6722.65 91.5 8.5 0 0 Yes 1.05 Yes Yes 2772 0.06 2.75 11.85 66.20 94.9 5.10 0 Yes 1.24 Yes Yes 2773 0.9 2.46 11.38 49.38 75.5 24.5 0 0 Yes 1.33Yes Yes 2774 3.6 2.71 12.61 30.58 86.5 13.5 0 0 Yes 1.27 Yes Yes 277510.5 2.36 12.78 45.59 80 20 0 0 Yes 1.05 Yes Yes 2776 0.05 2.16 9.5728.32 84.5 15.5 0 0 Yes 1.12 Yes Yes 2777 2.32 2.46 9.81 71.87 88 10.51.5 0 Yes 1.23 Yes Yes 2778 20.4 2.49 8.43 53.05 92.1 7.9 0 0 Yes 1.36Yes Yes 2779 7.34 2.95 8.55 27.74 95.2 4.8 0 0 Yes 1.11 Yes Yes 2780 9.42.36 8.22 42.75 81.6 18.4 0 0 Yes 1.07 Yes Yes 2781 23.43 2.21 9.4423.29 86.8 12.7 0 0.5 Yes 1.42 Yes Yes 2782 5.96 2.25 9.58 61.12 89.710.3 0 0 No 1.38 Yes Yes 2783 10.64 2.44 9.67 44.30 71.2 20.8 8 0 Yes1.22 Yes Yes 2784 16.5 2.78 9.83 23.96 97.5 2.5 0 0 No 1.14 Yes Yes 27857.95 2.15 10.07 44.09 84.8 15.2 0 0 Yes 1.13 Yes Yes 2786 7.95 2.19 9.4524.63 80.8 19.2 0 0 No 1.02 Yes Yes 2787 9.64 2.48 9.3 62.46 78.7 13.57.8 0 Yes 1.06 Yes Yes 2788 0.96 2.59 9.99 45.64 88.1 11.9 0 0 No 1.05Yes Yes Ratio of (Zn metal grains or Zn alloy grains):(Later- addedCoating details Zn metal Mg Total grains) content metal Zn metal Later-of all grain Invention Number grains/ added Zn metal content CoatCorrosion Example of Zn alloy metal grains of coat Base resin thicknessCoating Test No faces grains grains (Mass %) (Mass %) type (μm) methodResults 2769 7 1 10.5 1.078 50 Alkali 19 Brush E silicate 2770 7 1 15.50.648 51 Urethane 56 Spray E resin 2771 6 1 5.8 1.250 52 Alkyl 77 SprayE silicate 2772 7 1 1.9 1.759 53 Alkyl 12 Spray E silicate 2773 2 1 16.91.369 88 Alkyl 64 Spray E silicate 2774 7 1 1.5 5.400 85 Alkyl 34 BrushE silicate 2775 7 1 0.05 19.048 83 Alkali 28 Spray E silicate 2776 2 1215 0.072 81 Urethane 109 Brush E resin 2777 6 1 4.2 2.019 80 Alkyl 15Spray E silicate 2778 6 1 1.5 3.160 47 Alkyl 14 Spray E silicate 2779 71 4.8 0.828 49 Alkyl 18 Spray E silicate 2780 7 1 0.5 12.267 50 Urethane122 Brush E resin 2781 6 1 2.3 3.848 51 Alkyl 54 Spray E silicate 2782 71 0.05 9.810 52 Alkali 19 Spray E silicate 2783 2 1 120 0.172 83 Alkyl25 Brush E silicate 2784 2 1 3.7 0.532 88 Alkyl 58 Spray E silicate 27856 1 16.5 0.869 85 Alkyl 21 Spray E silicate 2786 7 1 24 0.768 83 Alkali19 Brush E silicate 2787 6 1 0.01 13.366 82 Urethane 56 Spray E resin2788 2 1 7.8 1.352 47 Alkyl 77 Spray E silicate

TABLE 141 Percent Diameter of fine- distribution grain Mg solid (peakmetal solution Average diameter) of grains Chemical component phase andAny of diameter Zn metal among Zn content of Alloy Zn—Mg MgZn2, oflater- grains/Zn metal Zn metal grain intermetallic Mg2Zn11, added Znalloy grains grains/ grains/Zn alloy fracture compounds Mg2Zn3,Invention metal (μm) Zn alloy grains surfaces Average present on MgZn,Example grains Fine Coarse grains (Mass %) or cracks aspect grain Mg7Zn3No (μm) metal metal (Vol %) Zn Mg Al Si present? ratio surfaces?present? 2789 5.26 2.47 9.58 25.30 88.5 10.6 0 0.9 Yes 1.24 Yes Yes 279013.5 2.69 9.4 42.84 84.6 15.4 0 0 Yes 1.33 Yes Yes 2791 13.5 2.57 9.5725.44 97.4 2.6 0 0 Yes 1.27 Yes Yes 2792 9.64 2.49 9.54 63.27 83.3 16.70 0 Yes 1.37 Yes Yes 2793 16.5 2.68 9.58 46.45 91.9 8.1 0 0 Yes 1.10 YesYes 2794 20.59 2.35 9.25 46.45 86.3 13.7 0 0 Yes 1.04 Yes Yes 2795 0.962.48 10.04 50.91 81.5 18.5 0 0 Yes 1.02 Yes Yes 2796 6.54 2.13 11.2727.25 97.6 2.4 0 0 Yes 1.01 Yes Yes 2797 5.26 1.93 11.44 42.26 89.1 10.90 0 Yes 1.08 Yes Yes 2798 10.64 2.05 8.9 33.69 92.8 7.2 0 0 Yes 1.14 YesYes 2799 9.64 1.42 8.75 48.70 81.96 17.5 0.5 0.04 No 1.23 Yes Yes 28006.9 1.46 9.44 29.24 85.4 14.6 0 0 No 1.33 Yes Yes 2801 10.5 1.75 9.0367.07 90.6 9.4 0 0 Yes 1.37 Yes Yes 2802 13.5 1.86 8.85 50.25 92.9 7.1 00 Yes 1.44 Yes Yes 2803 20.59 1.74 8.95 29.91 77.5 22.5 0 0 Yes 1.21 YesYes 2804 7.82 1.96 12.54 87.50 84.8 13.7 1.5 0 No 1.22 Yes Yes 2805 5.261.65 8.7 30.58 87.1 12.9 0 0 No 1.23 Yes Yes 2806 7.06 2.35 8.55 68.4195.7 4.3 0 0 Yes 1.47 Yes Yes 2807 0.64 1.62 10.72 54.59 80.2 17.6 1 1.2No 1.01 Yes Yes 2808 46.8 2.25 9.9 34.25 98.8 0.6 0.6 0 Yes 1.04 Yes YesRatio of (Zn metal grains or Zn alloy grains):(Later- added Coatingdetails Zn metal Mg Total grains) content metal Zn metal Later- of allgrain Invention Number grains/ added Zn metal content Coat CorrosionExample of Zn alloy metal grains of coat Base resin thickness CoatingTest No faces grains grains (Mass %) (Mass %) type (μm) method Results2789 2 1 1.6 4.077 46 Alkyl 54 Spray E silicate 2790 7 1 3.2 3.667 49Alkali 2 Spray G silicate 2791 6 1 5.4 0.406 50 Alkali 20 Spray Esilicate 2792 7 1 220 0.076 51 Alkali 5 Spray G silicate 2793 7 1 2.22.531 83 Alkyl 20 Spray E silicate 2794 6 1 2.8 3.605 82 Alkali 15 BrushE silicate 2795 2 1 12 1.423 88 Alkyl 57 Brush E silicate 2796 7 1 10.60.207 85 Alkali 13 Brush E silicate 2797 2 1 35 0.303 86 Alkyl 22 BrushE silicate 2798 2 1 125.5 0.057 47 Alkali 20 Spray E silicate 2799 7 1 62.500 48 Alkyl 27 Spray E silicate 2800 2 1 34 0.417 50 Alkali 15 SprayE silicate 2801 7 1 1.6 3.615 51 Alkyl 35 Spray E silicate 2802 2 1 7.50.835 52 Alkali 34 Brush E silicate 2803 6 1 200 0.112 88 Alkyl 45 BrushE silicate 2804 6 1 7.5 1.612 89 Alkali 52 Brush E silicate 2805 7 1 3.23.071 86 Alkyl 23 Brush E silicate 2806 6 1 2.6 1.194 87 Alkali 5 SprayE silicate 2807 2 1 3 4.400 86 Alkyl 52 Brush E silicate 2808 2 1 15.20.037 46 Alkali 150 Brush E silicate

TABLE 142 Percent Diameter of fine- distribution grain Mg solid (peakmetal solution Average diameter) of grains Chemical component phase andAny of diameter Zn metal among Zn content of Alloy Zn—Mg MgZn2, oflater- grains/Zn metal Zn metal grain intermetallic Mg2Zn11, added Znalloy grains grains/ grains/Zn alloy fracture compounds Mg2Zn3,Invention metal (μm) Zn alloy grains surfaces Average present on MgZn,Example grains Fine Coarse grains (Mass %) or cracks aspect grain Mg7Zn3No (μm) metal metal (Vol %) Zn Mg Al Si present? ratio surfaces?present? 2809 16.5 2.36 9.57 37.61 86.9 10.3 1.6 1.2 Yes 1.05 Yes Yes2810 13.5 2.24 10.79 45.60 92.98 7 0.02 0 Yes 1.12 Yes Yes 2811 0.962.46 10.93 46.70 75.5 23.5 1 0 Yes 1.11 Yes Yes 2812 0.96 1.56 11.0241.22 82.5 17.5 0 0 No 1.08 Yes Yes 2813 8.45 1.24 11.18 45.68 80.1 12.47.5 0 Yes 1.47 Yes Yes 2814 2.9 1.68 11.42 22.02 85.09 14.9 0 0.01 Yes1.50 Yes Yes 2815 5.4 2.65 10.8 37.03 78.7 20.7 0 0.6 No 1.13 Yes Yes2816 10.6 2.22 10.65 28.46 91.29 8.6 0 0.11 Yes 1.26 Yes Yes 2817 2.322.45 11.34 43.47 85.8 14.2 0 0 Yes 1.14 Yes Yes 2818 7.8 2.23 11.6235.19 98.12 0.08 0 1.8 Yes 1.49 Yes Yes 2819 7.95 2.26 11.15 73.02 83.4615.2 0 1.34 No 1.34 Yes Yes 2820 20.59 2.72 12.38 56.20 73.17 17.4 90.43 Yes 1.18 Yes Yes 2821 22.5 2.13 12.55 35.86 98.6 0.8 0.6 0 Yes 1.17Yes Yes 2822 4.6 1.98 9.34 93.45 93.55 6.4 0.05 0 Yes 1.48 Yes Yes 28234.9 2.02 9.58 30.66 96.78 3.2 0.02 0 No 1.49 Yes Yes 2824 10.5 2.21 9.8874.21 83 9.2 7.8 0 Yes 1.27 Yes Yes 2825 8.45 2.55 10 55.39 70.92 19.29.88 0 Yes 1.17 Yes Yes 2826 30.5 1.92 10.67 30.08 80.25 15.1 4.65 0 Yes1.16 Yes Yes 2827 49.5 1.96 11.89 45.09 81.85 14.5 3.65 0 Yes 1.27 YesYes 2828 5.9 2.11 12.03 41.41 89.45 10.5 0.05 0 Yes 1.27 Yes Yes Ratioof (Zn metal grains or Zn alloy grains):(Later- added Coating details Znmetal Mg Total grains) content metal Zn metal Later- of all grainInvention Number grains/ added Zn metal content Coat Corrosion Exampleof Zn alloy metal grains of coat Base resin thickness Coating Test Nofaces grains grains (Mass %) (Mass %) type (μm) method Results 2809 2 10.09 9.450 49 Alkyl 60 Brush E silicate 2810 2 1 13.5 0.483 35 Alkali 15Spray E silicate 2811 2 1 135.4 0.172 37 Alkyl 24 Spray E silicate 28122 1 3 4.375 36 Alkali 34 Spray E silicate 2813 6 1 7.8 1.409 38 Alkyl 20Brush E silicate 2814 6 1 10.2 1.330 48 Alkali 200 Brush E silicate 28157 1 7 2.588 46 Alkyl 56 Brush E silicate 2816 6 1 225.2 0.038 51 Alkali34 Spray E silicate 2817 2 1 5.4 2.219 46 Alkyl 2 Spray G silicate 28187 1 3.2 0.019 38 Alkali 15 Spray E silicate 2819 2 1 13.5 1.048 48Alkali 10 Spray E silicate 2820 6 1 1.6 6.692 52 Alkyl 125 Brush Esilicate 2821 6 1 1.5 0.320 30 Alkali 24 Brush E silicate 2822 2 1 2.51.829 76 Alkyl 110 Brush E silicate 2823 2 1 2.6 0.889 72 Alkali 24Brush E silicate 2824 7 1 126 0.072 81 Alkyl 2 Spray G silicate 2825 6 1120 0.159 64 Alkali 37 Spray E silicate 2826 7 1 7.5 1.776 69 Alkyl 113Brush E silicate 2827 2 1 6.5 1.933 83 Alkali 2 Spray G silicate 2828 71 20 0.500 30 Alkyl 75 Brush E silicate

TABLE 143 Percent Diameter of fine- Mg solid distribution grain solution(peak metal phase and Average diameter) of grains Zn—Mg Any of diameterZn metal among Zn Chemical component Alloy inter- MgZn2, of later-grains/Zn metal content of Zn metal grain metallic Mg2Zn11, added Znalloy grains grains/ grains/Zn alloy fracture compounds Mg2Zn3, metal(μm) Zn alloy grains surfaces present MgZn, Invention grains Fine Coarsegrains (Mass %) or cracks Average on grain Mg7Zn3 Example No (μm) metalmetal (Vol %) Zn Mg Al Si present? aspect ratio surfaces? present? 28294.52 2.97 12.12 17.75 87.3 7.5 5.2 0 Yes 1.49 Yes Yes 2830 5.96 2.3612.28 32.76 93.9 6.1 0 0.001 Yes 1.29 Yes Yes 2831 5.5 3.05 12.52 30.8982.55 16.8 0.05 0.6 Yes 1.23 Yes Yes 2832 3.6 2.57 11.9 45.90 70.7 27.51 0.8 Yes 1.23 Yes Yes 2833 16.5 2.65 11.75 42.22 94.6 2.9 0 2.5 Yes1.23 Yes Yes 2834 12.5 2.54 12.44 18.56 94 4.5 0 1.5 No 1.23 Yes Yes2835 16.5 2.85 12.03 33.57 99.43 0.07 0 0.5 Yes 1.27 Yes Yes 2836 10.92.75 10.61 31.70 96.82 3.1 0.04 0.04 Yes 1.23 Yes Yes 2837 5.6 2.46 11.346.71 76.3 20.5 1 2.2 Yes 1.36 Yes Yes 2838 22.6 2.71 11.58 47.89 68.8429.5 0.06 1.6 Yes 1.11 Yes Yes 2839 20.59 2.36 11.11 24.23 92.33 7.60.07 0 Yes 1.02 Yes Yes 2840 20.59 2.16 12.34 39.24 95.2 0.7 1.2 2.9 Yes1.05 Yes Yes 2841 9.56 2.46 12.51 37.37 91.8 4.6 1.8 1.8 Yes 1.24 YesYes 2842 5.9 2.49 11.64 50.38 82 8.3 9.2 0.5 Yes 1.33 Yes Yes 2843 6.541.63 9.16 37.14 88.2 11.8 0 0 Yes 1.27 Yes Yes 2844 21.4 1.51 9.46 13.4886.06 12.9 0 1.04 Yes 1.50 Yes Yes 2845 9.8 3.05 9.54 40.05 99.34 0.6 00.06 Yes 1.13 Yes Yes 2846 6.59 2.57 9.56 38.18 89.51 9.5 0 0.99 No 1.04Yes Yes 2847 6.54 2.65 9.46 7.63 88.3 11.7 0 0 Yes 1.02 Yes Yes 284816.5 2.54 11.99 37.95 89.9 9.4 0.7 0 Yes 1.08 Yes Yes Ratio of (Zn metalgrains or Zn alloy grains):(Later- Coating details added Mg Total Znmetal grains) content metal Zn metal Later- of all grain grains/ addedZn metal content Coat Invention Number of Zn alloy metal grains of coatBase resin thickness Coating Corrosion Example No faces grains grains(Mass %) (Mass %) type (μm) method Test Results 2829 6 1 0.007 7.448 83Alkali 30 Brush E silicate 2830 7 1 9 0.610 75 Alkyl 34 Brush E silicate2831 6 1 7.5 1.976 76 Epoxy resin 124 Brush E 2832 7 1 50 0.539 72Acrylic resin 15 Spray E 2833 6 1 0.005 2.886 71 Urethane 23 Spray Eresin 2834 2 1 25.6 0.169 82 Polyester 157 Brush E resin 2835 7 1 56.50.001 81 Epoxy resin 26 Spray E 2836 6 1 1.6 1.192 83 Acrylic resin 38Spray E 2837 6 1 3 5.125 50 Urethane 160 Brush E resin 2838 6 1 1000.292 72 Polyester 27 Brush E resin 2839 2 1 65.5 0.114 47 Epoxy resin180 Brush E 2840 6 1 1.9 0.241 47 Acrylic resin 26 Spray E 2841 7 1 2.11.484 52 Urethane 180 Brush E resin 2842 2 1 10.5 0.722 52 Polyester 15Spray E resin 2843 6 1 6.5 1.573 50 Epoxy resin 2 Spray G 2844 2 1 19.50.629 46 Acrylic resin 28 Spray E 2845 6 1 0.8 0.333 47 Urethane 30Spray E resin 2846 7 1 18.5 0.487 83 Polyester 2 Spray G resin 2847 7 14.3 2.208 52 Epoxy resin 157 Brush E 2848 2 1 3.2 2.238 89 Acrylic resin28 Brush E

TABLE 144 Percent Diameter of fine- Mg solid distribution grain solution(peak metal phase and Average diameter) of grains Zn—Mg Any of diameterZn metal among Zn Chemical component Alloy inter- MgZn2, of later-grains/Zn metal content of Zn metal grain metallic Mg2Zn11, added Znalloy grains grains/ grains/Zn alloy fracture compounds Mg2Zn3, metal(μm) Zn alloy grains surfaces present MgZn, Invention grains Fine Coarsegrains (Mass %) or cracks Average on grain Mg7Zn3 Example No (μm) metalmetal (Vol %) Zn Mg Al Si present? aspect ratio surfaces? present? 28497.8 2.85 12.08 14.29 87.8 11.7 0.5 0 Yes 1.15 Yes Yes 2850 16.5 2.7512.24 40.86 95.6 4.2 0.2 0 Yes 1.34 Yes Yes 2851 6.54 2.46 12.48 97.5097.13 2.8 0.07 0 Yes 1.25 Yes Yes 2852 8.45 2.71 11.86 13.30 86.1 13.9 00 Yes 1.19 Yes Yes 2853 8.5 2.36 11.71 43.62 82.6 14.6 1.6 1.2 No 1.18Yes Yes 2854 13.6 2.46 11.35 56.93 72.95 26.4 0.65 0 Yes 1.24 Yes Yes2855 12.33 1.45 12.02 36.59 83.23 16.5 0.27 0 Yes 1.11 Yes Yes 2856 16.52.42 13.24 39.95 79.4 19.5 0.45 0.65 Yes 1.27 Yes Yes 2857 7.9 2.11 9.4686.50 97.08 1.6 0.33 0.99 Yes 1.31 Yes Yes 2858 10.5 2.97 13.47 32.8790.5 6 1 2.5 Yes 1.26 Yes Yes 2859 16.5 2.36 9.46 16.23 88.93 8.4 0.871.8 Yes 1.14 Yes Yes 2860 10.64 3.05 13.87 37.40 86.7 13.3 0 0 Yes 1.34Yes Yes 2861 10.5 2.57 13.25 40.76 81.4 18.6 0. 0 Yes 1.16 Yes Yes 286220.59 2.65 13.1 87.31 97.34 1.8 0.86 0 No 1.47 Yes Yes 2863 8.5 2.129.08 92.50 95.25 4.1 0.65 0 Yes 1.48 Yes Yes 2864 0.5 1.65 9.87 17.9382.87 16.7 0.43 0 No 1.49 Yes Yes 2865 10.5 2.35 9.46 44.50 99 0.4 0.6 0Yes 1.34 Yes Yes 2866 11.5 1.63 9.28 96.50 89.35 10.6 0.05 0 Yes 1.29Yes Yes 2867 36.5 2.64 9.45 16.94 93.08 6.9 0.02 0 Yes 1.18 Yes Yes 28681.5 2.35 9.25 88.12 99.82 0.05 0.06 0.07 Yes 1.48 Yes Yes Ratio of (Znmetal grains or Zn alloy grains):(Later- Coating details added Mg TotalZn metal grains) content metal Zn metal Later- of all grain grains/added Zn metal content Coat Invention Number of Zn alloy metal grains ofcoat Base resin thickness Coating Corrosion Example No faces grainsgrains (Mass %) (Mass %) type (μm) method Test Results 2849 2 1 1.54.680 85 Alkyl 130 Brush E silicate 2850 6 1 4.5 0.764 53 Alkyl 29 BrushE silicate 2851 7 1 15.5 0.170 88 Epoxy resin 30 Brush E 2852 6 1 10.51.209 85 Acrylic resin 120 Brush E 2853 7 1 2.5 4.171 52 Urethane 187Brush E resin 2854 6 1 9 2.640 83 Polyester 28 Spray E resin 2855 2 110.5 0.156 88 Epoxy resin 5 Spray E 2856 2 1 5.7 2.910 49 Acrylic resin35 Spray E 2857 6 1 3.9 0.327 50 Urethane 5 Spray G resin 2858 7 1 4.51.091 51 Polyester 200 Brush E resin 2859 6 1 3.6 1.826 83 Alkali 25Spray E silicate 2860 6 1 16.4 0.764 82 Alkali 15 Spray E silicate 28612 1 6 2.657 88 Alkyl 20 Spray E silicate 2862 7 1 7.5 0.212 85 Alkali 18Spray E silicate 2863 2 1 10.5 0.357 87 Alkyl 22 Spray E silicate 2864 21 2.6 4.639 86 Alkali 19 Spray E silicate 2865 6 1 1.5 0.160 46 Alkyl 29Spray E silicate 2866 7 1 13.5 0.731 49 Alkali 23 Spray E silicate 28677 1 2.6 1.917 35 Alkyl 21 Spray E silicate 2868 6 1 6.5 0.007 30 Alkali19 Spray E silicate

TABLE 145 Percent Diameter of fine- Mg solid distribution grain solution(peak metal phase and Average diameter) of grains Zn—Mg Any of diameterZn metal among Zn Chemical component Alloy inter- MgZn2, of later-grains/Zn metal content of Zn metal grain metallic Mg2Zn11, added Znalloy grains grains/ grains/Zn alloy fracture compounds Mg2Zn3, metal(μm) Zn alloy grains surfaces present MgZn, Invention grains Fine Coarsegrains (Mass %) or cracks Average on grain Mg7Zn3 Example No (μm) metalmetal (Vol %) Zn Mg Al Si present? aspect ratio surfaces? present? 28698.7 2.31 9.46 60.57 91.56 6.4 1.05 0.99 Yes 1.27 Yes Yes 2870 7.8 2.629.46 39.48 93.36 3.5 2.6 0.54 Yes 1.17 Yes Yes 2871 5.96 2.52 9.46 15.8282.13 17.5 0.05 0.32 Yes 1.27 Yes Yes 2872 0.06 2.24 13.32 49.57 91.23.6 5.2 0 No 1.27 Yes Yes 2873 0.9 0.05 6.54 86.52 94.1 5.9 0 0.001 Yes1.48 Yes Yes 2874 3.6 2.42 6.35 90.98 83.2 16.2 0 0.6 No 1.49 Yes Yes2875 10.5 0.11 7.54 67.32 76.7 22.5 0 0.8 Yes 1.34 Yes Yes 2876 0.051.92 8.64 82.33 96.52 3.4 0.04 0.04 Yes 1.23 Yes Yes 2877 2.32 0.46 6.4573.76 68.3 26.5 3 2.2 Yes 1.23 Yes Yes 2878 20.4 0.77 6.48 88.77 72.8425.5 0.06 1.6 Yes 1.23 Yes Yes 2879 8.6 2.35 9.25 45.02 87.2 12.8 0 0Yes 1.05 Yes Yes 2880 10.5 2.33 9.46 15.2 91.5 8.5 0 0 Yes 1.06 Yes Yes2881 8.7 1.95 9.32 51.41 75.23 24.5 0.27 0 Yes 1.38 Yes Yes 2882 7.82.15 9.22 45.46 77.48 18.4 2.55 1.57 Yes 1.06 Yes Yes 2883 5.96 2.2311.62 35.19 72.62 0.08 25.5 1.8 Yes 1.49 Yes Yes 2884 1.6 2.26 11.1573.02 64.06 15.2 19.4 1.34 No 1.34 Yes Yes 2885 7.2 1.98 9.34 93.45 836.4 10.6 0 Yes 1.48 Yes Yes 2886 10.5 2.02 9.58 30.66 86.4 3.2 10.4 0 No1.49 Yes Yes 2887 3.6 2.36 12.28 32.76 80.4 6.1 13.5 0.001 Yes 1.29 YesYes 2888 4.5 3.05 12.52 30.89 70.1 16.8 12.5 0.6 Yes 1.23 Yes Yes 28897.9 2.57 11.9 45.9 60.9 27.5 10.8 0.8 Yes 1.23 Yes Yes Ratio of (Znmetal grains or Zn alloy grains):(Later- Coating details added Mg TotalZn metal grains) content metal Zn metal Later- of all grain grains/added Zn metal content Coat Invention Number of Zn alloy metal grains ofcoat Base resin thickness Coating Corrosion Example No faces grainsgrains (Mass %) (Mass %) type (μm) method Test Results 2869 7 1 1.62.462 76 Alkyl silicate 15 Spray E 2870 7 1 3.8 0.729 72 Alkali 18 SprayE silicate 2871 6 1 0.08 16.204 30 Alkyl 22 Spray E silicate 2872 7 1164.5 0.022 83 Alkyl 21 Spray E silicate 2873 2 1 3.6 1.283 75 Alkyl 29Spray E silicate 2874 7 1 8.6 1.688 76 Alkali 23 Spray E silicate 2875 71 12 1.731 72 Alkyl 21 Spray E silicate 2876 2 1 5.8 0.500 83 Alkali 19Spray E silicate 2877 6 1 10 2.409 50 Alkyl 21 Spray E silicate 2878 6 11 12.750 72 Alkali 19 Spray E silicate 2879 7 1 10.5 1.113 50 Acrylicresin 654 Spray E 2880 6 1 6.5 1.133 48 Alkali 700 Spray E silicate 28817 1 19.5 1.195 75 Alkyl 555 Spray E silicate 2882 7 1 0.8 10.222 55Alkyl 12 Spray E silicate 2883 6 1 5.3 0.013 38 Alkyl 678 Brush Esilicate 2884 7 1 4.3 2.868 48 Urethane 674 Spray E resin 2885 2 1 3.21.524 76 Polyester 325 Spray E resin 2886 7 1 1.5 1.280 72 Alkyl 665Spray E silicate 2887 7 1 4.5 1.109 75 Alkyl 354 Brush E silicate 2888 21 0.8 9.333 76 Alkyl 165 Spray E silicate 2889 6 1 6.5 3.667 72 Urethane354 Spray E resin

TABLE 146 Percent Diameter of fine- Mg solid distribution grain solution(peak metal phase and Average diameter) of grains Zn—Mg Any of diameterZn metal among Zn Chemical component Alloy inter- MgZn2, of later-grains/Zn metal content of Zn metal grain metallic Mg2Zn11, added Znalloy grains grains/ grains/Zn alloy fracture compounds Mg2Zn3, metal(μm) Zn alloy grains surfaces present MgZn, Invention grains Fine Coarsegrains (Mass %) or cracks Average on grain Mg7Zn3 Example No (μm) metalmetal (Vol %) Zn Mg Al Si present? aspect ratio surfaces? present? 289016.5 2.35 9.25 35.87 88.8 11.2 0 0 Yes 1.12 Yes Yes 2891 13.5 2.57 9.5642.04 90.6 9.4 0 0 No 1.38 Yes Yes 2892 0.96 2.56 9.84 6.55 81.45 18.5 00.05 Yes 1.22 Yes Yes 2893 0.96 2.21 9.75 43.60 99.97 0.03 0 0 Yes 1.14Yes Yes 2894 8.45 2.64 9.85 44.12 98.4 1.6 0 0 No 1.02 Yes Yes 2895 2.91.99 8.56 37.21 93.2 6.8 0 0 Yes 1.05 Yes Yes 2896 5.4 2.94 8.21 43.3884.5 13.9 0 1.6 No 1.36 No Yes 2897 10.6 2.58 8.33 13.52 98.1 1.9 0 0Yes 1.11 No Yes 2898 2.32 2.37 8 44.94 94.3 5.7 0 0 No 1.07 Yes Yes 28997.8 2.15 9.22 45.46 90.8 9.2 0 0 No 1.42 Yes Yes 2900 7.95 2.96 9.3635.96 83.3 15.4 0 1.3 Yes 1.38 No Yes 2901 20.59 2.85 9.45 42.13 79.8418.6 0 1.56 Yes 1.22 No Yes 2902 22.5 2.94 9.61 7.56 96.4 3.6 0 0 Yes1.14 Yes Yes 2903 4.6 2.11 9.85 43.69 94.6 5.4 0 0 Yes 1.13 Yes Yes 29044.9 2.68 9.23 44.21 92.4 7.6 0 0 Yes 1.02 No Yes 2905 10.5 2.99 9.0839.51 75.5 24.5 0 0 Yes 1.06 Yes Yes 2906 8.45 2.78 9.87 45.68 82.4 17.60 0 Yes 1.05 Yes Yes 2907 30.5 2.96 9.46 65.58 98.6 1.4 0 0 Yes 1.24 NoYes 2908 49.5 2.85 9.28 47.24 78.5 21.5 0 0 Yes 1.33 No Yes 2909 5.92.64 9.45 47.76 89.6 10.4 0 0 Yes 1.27 Yes Yes Ratio of (Zn metal grainsor Zn alloy grains):(Later- Coating details added Mg Total Zn metalgrains) content metal Zn metal Later- of all grain grains/ added Znmetal content Coat Invention Number of Zn alloy metal grains of coatBase resin thickness Coating Corrosion Example No faces grains grains(Mass %) (Mass %) type (μm) method Test Results 2890 2 1 5 1.867 49Alkyl 14 Spray E silicate 2891 2 1 198.7 0.047 89 Urethane 55 Spray Eresin 2892 2 1 36 0.500 90 Alkyl 8 Spray E silicate 2893 2 1 1.5 0.01286 Urethane 122 Brush E resin 2894 6 1 0.008 1.587 48 Alkyl 555 Spray Esilicate 2895 6 1 1.4 2.833 47 Alkali 19 Spray E silicate 2896 7 1 4.22.673 47 Alkyl 25 Brush E silicate 2897 6 1 1.6 0.731 47 Alkyl 58 SprayE silicate 2898 2 1 7.5 0.671 52 Alkyl 685 Spray E silicate 2899 7 1 1.63.538 52 Alkali 19 Brush E silicate 2900 2 1 2 5.133 52 Urethane 700Spray E resin 2901 6 1 270 0.069 88 Alkyl 77 Spray E silicate 2902 6 17.5 0.424 87 Alkyl 54 Spray E silicate 2903 2 1 2.9 1.385 89 Alkyl 64Spray E silicate 2904 2 1 2.6 2.111 90 Alkyl 34 Brush E silicate 2905 71 0.1 22.273 91 Alkali 28 Spray E silicate 2906 6 1 1.2 8.000 46Urethane 109 Brush E resin 2907 7 1 1.2 0.636 47 Alkyl 15 Spray Esilicate 2908 2 1 62 0.341 47 Alkyl 14 Spray E silicate 2909 7 1 2.43.059 49 Alkyl 18 Spray E silicate

TABLE 147 Percent Diameter of fine- Mg solid distribution grain solution(peak metal phase and Average diameter) of grains Zn—Mg Any of diameterZn metal among Zn Chemical component Alloy inter- MgZn2, of later-grains/Zn metal content of Zn metal grain metallic Mg2Zn11, added Znalloy grains grains/ grains/Zn alloy fracture compounds Mg2Zn3, metal(μm) Zn alloy grains surfaces present MgZn, Invention grains Fine Coarsegrains (Mass %) or cracks Average on grain Mg7Zn3 Example No (μm) metalmetal (Vol %) Zn Mg Al Si present? aspect ratio surfaces? present? 29104.52 2.35 9.25 45.02 87.2 12.8 0 0 Yes 1.05 Yes Yes 2911 5.96 2.12 9.4647.02 92.2 7.8 0 0 Yes 1.22 No Yes 2912 5.5 2.34 9.46 7.66 70.5 29.5 0 0Yes 1.13 No Yes 2913 3.6 2.33 9.46 15.20 91.5 8.5 0 0 Yes 1.06 Yes Yes2914 16.5 2.23 9.06 43.16 74.5 25.5 0 0 Yes 1.05 Yes Yes 2915 12.5 2.129.3 49.33 99.93 0.07 0 0 Yes 1.24 Yes Yes 2916 16.5 2.21 8.68 19.47 89.210.8 0 0 No 1.05 Yes Yes 2917 10.9 1.38 8.53 69.55 86 11.2 1.6 1.2 No1.12 Yes Yes 2918 5.6 1.95 9.32 51.41 75.23 24.5 0.27 0 Yes 1.38 No Yes2919 22.6 2.26 8.95 75.88 82.6 17.4 0 0 Yes 1.13 No Yes 2920 20.59 2.0512.54 48.08 98.7 1.3 0 0 Yes 1.33 Yes Yes 2921 20.59 1.65 8.7 66.85 80.519.5 0 0 Yes 1.27 Yes Yes 2922 9.56 2.35 8.55 7.68 88.85 10.8 0.05 0.3No 1.23 No Yes 2923 5.9 1.62 8.91 8.64 87.7 11.9 0.4 0 Yes 1.11 Yes Yes2924 6.54 1.88 9.91 16.58 90.5 9.5 0 0 Yes 1.42 Yes Yes 2925 21.4 2.359.25 35.87 89.5 10.5 0 0 Yes 1.06 No Yes 2926 9.8 2.57 9.56 42.04 84.915.1 0 0 Yes 1.05 Yes Yes 2927 6.59 2.56 9.84 38.41 83.2 16.8 0 0 Yes1.07 Yes Yes 2928 6.54 2.21 9.75 6.99 89.4 10.6 0 0 Yes 1.42 No Yes 292916.5 2.64 9.85 44.12 84.3 13.3 2.4 0 Yes 1.38 Yes Yes Ratio of (Zn metalgrains or Zn alloy grains):(Later- Coating details added Mg Total Znmetal grains) content metal Zn metal Later- of all grain grains/ addedZn metal content Coat Invention Number of Zn alloy metal grains of coatBase resin thickness Coating Corrosion Example No faces grains grains(Mass %) (Mass %) type (μm) method Test Results 2910 6 1 2.1 4.129 50Alkali 2 Spray G silicate 2911 7 1 34.5 0.220 87 Alkyl 37 Spray Esilicate 2912 6 1 270 0.109 83 Alkali 12 Spray E silicate 2913 7 1 32.50.254 48 Alkyl 160 Brush E silicate 2914 6 1 3 6.375 51 Alkali 5 Brush Gsilicate 2915 2 1 1.5 0.028 51 Alkyl 56 Brush E silicate 2916 7 1 7.51.271 87 Alkali 2 Spray G silicate 2917 6 1 13.5 0.772 85 Alkyl 18 SprayE silicate 2918 6 1 5 4.083 86 Alkyl 23 Spray E silicate 2919 6 1 52.900 50 Epoxy resin 30 Brush E 2920 2 1 1 0.650 51 Acrylic resin 77Brush E 2921 6 1 120 0.161 51 Urethane 655 Brush E resin 2922 7 1 3.72.298 80 Polyester 47 Spray E resin 2923 2 1 6.1 1.676 46 Epoxy resin 43Spray E 2924 6 1 198.5 0.048 51 Acrylic resin 52 Brush E 2925 2 1 2.53.000 86 Urethane 20 Brush E resin 2926 6 1 18.5 0.774 85 Polyester 200Brush E resin 2927 7 1 8 1.867 82 Alkali 22 Spray E silicate 2928 7 11.6 4.077 81 Alkyl 25 Spray E silicate 2929 2 1 1.2 6.045 46 Alkali 14Spray E silicate

TABLE 148 Percent Diameter of fine- Mg solid distribution grain solution(peak metal phase and Average diameter) of grains Zn—Mg Any of diameterZn metal among Zn Chemical component Alloy inter- MgZn2, of later-grains/Zn metal content of Zn metal grain metallic Mg2Zn11, added Znalloy grains grains/ grains/Zn alloy fracture compounds Mg2Zn3, metal(μm) Zn alloy grains surfaces present MgZn, Invention grains Fine Coarsegrains (Mass %) or cracks Average on grain Mg7Zn3 Example No (μm) metalmetal (Vol %) Zn Mg Al Si present? aspect ratio surfaces? present? 29307.8 2.65 8.56 66.99 98.6 1.4 0 0 No 1.22 Yes Yes 2931 16.5 2.94 8.2143.38 76.45 23.5 0 0.05 Yes 1.14 Yes Yes 2932 6.54 2.58 8.33 39.75 91.18.9 0 0 Yes 1.13 Yes Yes 2933 8.45 2.37 8 65.38 85.1 14.9 0 0 Yes 1.02Yes Yes 2934 8.5 2.15 9.22 45.46 77.48 18.4 2.55 1.57 Yes 1.06 Yes Yes2935 13.6 2.96 9.36 22.55 97.9 2.1 0 0 Yes 1.05 Yes Yes 2936 12.33 2.859.45 42.13 94.8 5.2 0 0 Yes 1.24 Yes Yes 2937 16.5 2.94 9.61 38.50 84.615.4 0 0 Yes 1.33 Yes Yes 2938 7.9 2.11 9.85 64.13 89.3 10.7 0 0 Yes1.27 Yes Yes 2939 10.5 2.68 9.23 44.21 83.3 16.7 0 0 Yes 1.05 Yes Yes2940 16.5 2.99 9.08 39.51 80.05 19.6 0.35 0 No 1.12 Yes Yes 2941 10.641.82 9.87 78.64 85.5 14.5 0 0 No 1.23 Yes Yes 2942 10.5 1.42 9.46 42.0585 14.2 0 0.8 No 1.36 Yes Yes 2943 20.59 2.12 9.28 64.58 87.3 12.7 0 0No 1.11 Yes Yes 2944 8.5 1.92 9.45 47.76 89.5 10.5 0 0 Yes 1.07 Yes Yes2945 0.5 2.11 9.63 24.10 87.3 11.8 0 0.9 Yes 1.42 Yes Yes 2946 10.5 2.979.16 39.11 86.4 12.8 0.5 0.3 Yes 1.38 Yes Yes 2947 11.5 2.36 10.39 19.6593.8 6.2 0 0 Yes 1.22 Yes Yes 2948 36.5 3.05 10.56 65.39 83.8 16.2 0 0Yes 1.14 Yes Yes 2949 1.5 2.15 10.74 48.57 80.4 19.6 0 0 Yes 1.13 YesYes Ratio of (Zn metal grains or Zn alloy grains):(Later- Coatingdetails added Mg Total Zn metal grains) content metal Zn metal Later- ofall grain grains/ added Zn metal content Coat Invention Number of Znalloy metal grains of coat Base resin thickness Coating CorrosionExample No faces grains grains (Mass %) (Mass %) type (μm) method TestResults 2930 2 1 0.5 0.933 47 Urethane 112 Spray E resin 2931 6 1 92.350 48 Alkali 24 Spray E silicate 2932 7 1 4.5 1.618 51 Urethane 150Spray E resin 2933 6 1 136 0.109 53 Alkali 18 Spray E silicate 2934 7 113 1.314 88 Alkyl 19 Brush E silicate 2935 6 1 10.6 0.181 85 Alkyl 24Spray E silicate 2936 2 1 1.6 2.000 83 Urethane 99 Spray E resin 2937 21 68 0.223 82 Alkyl 7 Spray E silicate 2938 6 1 4.5 1.945 83 Epoxy resin100 Spray E 2939 7 1 10.5 1.452 47 Alkyl 27 Brush E silicate 2940 6 14.9 3.322 51 Alkali 15 Spray E silicate 2941 6 1 10.5 1.261 52 Alkyl 14Spray E silicate 2942 2 1 192 0.074 51 Urethane 55 Spray E resin 2943 71 0.07 11.869 52 Alkyl 8 Spray E silicate 2944 2 1 9.5 1.000 89 Urethane122 Brush E resin 2945 2 1 2.6 3.278 85 Alkyl 54 Spray E silicate 2946 61 4.5 2.327 82 Alkali 19 Spray E silicate 2947 7 1 3 1.550 87 Alkyl 25Brush E silicate 2948 7 1 7.5 1.906 88 Alkyl 58 Spray E silicate 2949 61 77 0.251 49 Alkyl 21 Spray E silicate

TABLE 149 Percent Diameter of fine- Mg solid distribution grain solution(peak metal phase and Average diameter) of grains Zn—Mg Any of diameterZn metal among Zn Chemical component Alloy inter- MgZn2, of later-grains/Zn metal content of Zn metal grain metallic Mg2Zn11, added Znalloy grains grains/ grains/Zn alloy fracture compounds Mg2Zn3, metal(μm) Zn alloy grains surfaces present MgZn, Invention grains Fine Coarsegrains (Mass %) or cracks Average on grain Mg7Zn3 Example No (μm) metalmetal (Vol %) Zn Mg Al Si present? aspect ratio surfaces? present? 29508.7 2.19 10.27 24.91 87.6 12.4 0 0 Yes 1.02 Yes Yes 2951 7.8 2.48 11.539.92 89.3 10.7 0 0 Yes 1.06 Yes Yes 2952 5.96 2.85 11.67 22.65 91.5 8.50 0 Yes 1.05 Yes Yes 2953 0.06 2.75 11.85 66.20 94.9 5.1 0 0 Yes 1.24Yes Yes 2954 0.9 2.46 11.38 49.38 75.5 24.5 0 0 Yes 1.33 Yes Yes 29553.6 2.71 12.61 30.58 86.5 13.5 0 0 Yes 1.27 Yes Yes 2956 10.5 2.36 12.7845.59 80 20 0 0 Yes 1.05 Yes Yes 2957 0.05 2.16 9.57 28.32 84.5 15.5 0 0Yes 1.12 Yes Yes 2958 2.32 2.46 9.81 71.87 88 10.5 1.5 0 Yes 1.23 YesYes 2959 20.4 2.49 8.43 53.05 92.1 7.9 0 0 Yes 1.36 Yes Yes 2960 7.342.95 8.55 27.74 95.2 4.8 0 0 Yes 1.11 Yes Yes 2961 9.4 2.36 8.22 42.7581.6 18.4 0 0 Yes 1.07 Yes Yes 2962 23.43 2.21 9.44 23.29 86.8 12.7 00.5 Yes 1.42 Yes Yes 2963 5.96 2.25 9.58 61.12 89.7 10.3 0 0 No 1.38 YesYes 2964 10.64 2.44 9.67 44.30 71.2 20.8 8 0 Yes 1.22 Yes Yes 2965 16.52.78 9.83 23.96 97.5 2.5 0 0 No 1.14 Yes Yes 2966 7.95 2.15 10.07 44.0984.8 15.2 0 0 Yes 1.13 Yes Yes 2967 7.95 2.19 9.45 24.63 80.8 19.2 0 0No 1.02 Yes Yes 2968 9.64 2.48 9.3 62.46 78.7 13.5 7.8 0 Yes 1.06 YesYes 2969 0.96 2.59 9.99 45.64 88.1 11.9 0 0 No 1.05 Yes Yes Ratio of (Znmetal grains or Zn alloy grains):(Later- Coating details added Mg TotalZn metal grains) content metal Zn metal Later- of all grain grains/added Zn metal content Coat Invention Number of Zn alloy metal grains ofcoat Base resin thickness Coating Corrosion Example No faces grainsgrains (Mass %) (Mass %) type (μm) method Test Results 2950 7 1 10.51.078 50 Alkali 19 Brush E silicate 2951 7 1 15.5 0.648 51 Urethane 56Spray E resin 2952 6 1 5.8 1.250 52 Alkyl silicate 77 Spray E 2953 7 11.9 1.759 53 Alkyl 12 Spray E silicate 2954 2 1 16.9 1.369 88 Alkyl 64Spray E silicate 2955 7 1 1.5 5.400 85 Alkyl 34 Brush E silicate 2956 71 0.05 19.048 83 Alkali 28 Spray E silicate 2957 2 1 215 0.072 81Urethane 109 Brush E resin 2958 6 1 4.2 2.019 80 Alkyl 15 Spray Esilicate 2959 6 1 1.5 3.160 47 Alkyl 14 Spray E silicate 2960 7 1 4.80.828 49 Alkyl 18 Spray E silicate 2961 7 1 0.5 12.267 50 Urethane 122Brush E resin 2962 6 1 2.3 3.848 51 Alkyl 54 Spray E silicate 2963 7 10.05 9.810 52 Alkali 19 Spray E silicate 2964 2 1 120 0.172 83 Alkyl 25Brush E silicate 2965 2 1 3.7 0.532 88 Alkyl 58 Spray E silicate 2966 61 16.5 0.869 85 Alkyl 21 Spray E silicate 2967 7 1 24 0.768 83 Alkali 19Brush E silicate 2968 6 1 0.01 13.366 82 Urethane 56 Spray E resin 29692 1 7.8 1.352 47 Alkyl 77 Spray E silicate

TABLE 150 Percent Diameter of fine- Mg solid distribution grain solution(peak metal phase and Average diameter) of grains Zn—Mg Any of diameterZn metal among Zn Chemical component Alloy inter- MgZn2, of later-grains/Zn metal content of Zn metal grain metallic Mg2Zn11, added Znalloy grains grains/ grains/Zn alloy fracture compounds Mg2Zn3, metal(μm) Zn alloy grains surfaces present MgZn, Invention grains Fine Coarsegrains (Mass %) or cracks Average on grain Mg7Zn3 Example No (μm) metalmetal (Vol %) Zn Mg Al Si present? aspect ratio surfaces? present? 29705.26 2.47 9.58 25.30 88.5 10.6 0 0.9 Yes 1.24 Yes Yes 2971 13.5 2.69 9.442.84 84.6 15.4 0 0 Yes 1.33 Yes Yes 2972 13.5 2.57 9.57 25.44 97.4 2.60 0 Yes 1.27 Yes Yes 2973 9.64 2.49 9.54 53.27 83.3 16.7 0 0 Yes 1.37Yes Yes 2974 16.5 2.68 9.58 46.45 91.9 8.1 0 0 Yes 1.10 Yes Yes 297520.59 2.35 9.25 46.45 86.3 13.7 0 0 Yes 1.04 Yes Yes 2976 0.96 2.4810.04 50.91 81.5 18.5 0 0 Yes 1.02 Yes Yes 2977 6.54 2.13 11.27 27.2597.6 2.4 0 0 Yes 1.01 Yes Yes 2978 5.26 1.93 11.44 42.26 89.1 10.9 0 0Yes 1.08 Yes Yes 2979 10.64 2.05 8.9 33.69 92.8 7.2 0 0 Yes 1.14 Yes Yes2980 9.64 1.42 8.75 48.70 81.96 17.5 0.5 0.04 No 1.23 Yes Yes 2981 6.91.46 9.44 29.24 85.4 14.6 0 0 No 1.33 Yes Yes 2982 10.5 1.75 9.03 67.0790.6 9.4 0 0 Yes 1.37 Yes Yes 2983 13.5 1.86 8.85 50.25 92.9 7.1 0 0 Yes1.44 Yes Yes 2984 20.59 1.74 8.95 29.91 77.5 22.5 0 0 Yes 1.21 Yes Yes2985 7.82 1.96 12.54 87.50 84.8 13.7 1.5 0 No 1.22 Yes Yes 2986 5.261.65 8.7 30.58 87.1 12.9 0 0 No 1.23 Yes Yes 2987 7.06 2.35 8.55 68.4195.7 4.3 0 0 Yes 1.47 Yes Yes 2988 0.64 1.62 10.72 54.59 80.2 17.6 1 1.2No 1.01 Yes Yes 2989 46.8 2.25 9.9 34.25 98.8 0.6 0.6 0 Yes 1.04 Yes YesRatio of (Zn metal grains or Zn alloy grains):(Later- Coating detailsadded Mg Total Zn metal grains) content metal Zn metal Later- of allgrain grains/ added Zn metal content Coat Invention Number of Zn alloymetal grains of coat Base resin thickness Coating Corrosion Example Nofaces grains grains (Mass %) (Mass %) type (μm) method Test Results 29702 1 1.6 4.077 46 Alkyl silicate 54 Spray E 2971 7 1 3.2 3.667 49 Alkali2 Spray G silicate 2972 6 1 5.4 0.406 50 Alkali 20 Spray E silicate 29737 1 220 0.076 51 Alkali 5 Spray G silicate 2974 7 1 2.2 2.531 83 Alkyl20 Spray E silicate 2975 6 1 2.8 3.605 82 Alkali 15 Brush E silicate2976 2 1 12 1.423 88 Alkyl 57 Brush E silicate 2977 7 1 10.6 0.207 85Alkali 13 Brush E silicate 2978 2 1 35 0.303 86 Alkyl 22 Brush Esilicate 2979 2 1 125.5 0.057 47 Alkali 20 Spray E silicate 2980 7 1 62.500 48 Alkyl 27 Spray E silicate 2981 2 1 34 0.417 50 Alkali 15 SprayE silicate 2982 7 1 1.6 3.615 51 Alkyl 35 Spray E silicate 2983 2 1 7.50.835 52 Alkali 34 Brush E silicate 2984 6 1 200 0.112 88 Alkyl 45 BrushE silicate 2985 6 1 7.5 1.612 89 Alkali 52 Brush E silicate 2986 7 1 3.23.071 86 Alkyl 23 Brush E silicate 2987 6 1 2.6 1.194 87 Alkali 5 SprayE silicate 2988 2 1 3 4.400 86 Alkyl 52 Brush E silicate 2989 2 1 15.20.037 46 Alkali 150 Brush E silicate

TABLE 151 Percent Diameter of fine- Mg solid distribution grain solution(peak metal phase and Average diameter) of grains Zn—Mg Any of diameterZn metal among Zn Chemical component Alloy inter- MgZn2, of later-grains/Zn metal content of Zn metal grain metallic Mg2Zn11, added Znalloy grains grains/ grains/Zn alloy fracture compounds Mg2Zn3, metal(μm) Zn alloy grains surfaces present MgZn, Invention grains Fine Coarsegrains (Mass %) or cracks Average on grain Mg7Zn3 Example No (μm) metalmetal (Vol %) Zn Mg Al Si present? aspect ratio surfaces? present? 299016.5 2.36 9.57 37.61 86.9 10.3 1.6 1.2 Yes 1.05 Yes Yes 2991 13.5 2.2410.79 45.60 92.98 7 0.02 0 Yes 1.12 Yes Yes 2992 0.96 2.46 10.93 46.7075.5 23.5 1 0 Yes 1.11 Yes Yes 2993 0.96 1.56 11.02 41.22 82.5 17.5 0 0No 1.08 Yes Yes 2994 8.45 1.24 11.18 45.68 80.1 12.4 7.5 0 Yes 1.47 YesYes 2995 2.9 1.68 11.42 22.02 85.09 14.9 0 0.01 Yes 1.50 Yes Yes 29965.4 2.65 10.8 37.03 78.7 20.7 0 0.6 No 1.13 Yes Yes 2997 10.6 2.22 10.6528.46 91.29 8.6 0 0.11 Yes 1.26 Yes Yes 2998 2.32 2.45 11.34 43.47 85.814.2 0 0 Yes 1.14 Yes Yes 2999 7.8 2.23 11.62 35.19 98.12 0.08 0 1.8 Yes1.49 Yes Yes 3000 7.95 2.26 11.15 73.02 83.46 15.2 0 1.34 No 1.34 YesYes 3001 20.59 2.72 12.38 56.20 73.17 17.4 9 0.43 Yes 1.18 Yes Yes 300222.5 2.13 12.55 35.86 98.6 0.8 0.6 0 Yes 1.17 Yes Yes 3003 4.6 1.98 9.3493.45 93.55 6.4 0.05 0 Yes 1.48 Yes Yes 3004 4.9 2.02 9.58 30.66 96.783.2 0.02 0 No 1.49 Yes Yes 3005 10.5 2.21 9.88 74.21 83 9.2 7.8 0 Yes1.27 Yes Yes 3006 8.45 2.55 10 55.39 70.92 19.2 9.88 0 Yes 1.17 Yes Yes3007 30.5 1.92 10.67 30.08 80.25 15.1 4.65 0 Yes 1.16 Yes Yes 3008 49.51.96 11.89 45.09 81.85 14.5 3.65 0 Yes 1.27 Yes Yes 3009 5.9 2.11 12.0341.41 89.45 10.5 0.05 0 Yes 1.27 Yes Yes Ratio of (Zn metal grains or Znalloy grains):(Later- Coating details added Mg Total Zn metal grains)content metal Zn metal Later- of all grain grains/ added Zn metalcontent Coat Invention Number of Zn alloy metal grains of coat Baseresin thickness Coating Corrosion Example No faces grains grains (Mass%) (Mass %) type (μm) method Test Results 2990 2 1 0.09 9.450 49 Alkylsilicate 60 Brush E 2991 2 1 13.5 0.483 35 Alkyl 15 Spray E silicate2992 2 1 135.4 0.172 37 Alkyl 24 Spray E silicate 2993 2 1 3 4.375 36Alkali 34 Spray E silicate 2994 6 1 7.8 1.409 38 Alkyl 20 Brush Esilicate 2995 6 1 10.2 1.330 48 Alkali 200 Brush E silicate 2996 7 1 72.588 46 Alkyl 56 Brush E silicate 2997 6 1 225.2 0.038 51 Alkali 34Spray E silicate 2998 2 1 5.4 2.219 46 Alkyl 2 Spray G silicate 2999 7 13.2 0.019 38 Alkali 15 Spray E silicate 3000 2 1 13.5 1.048 48 Alkali 10Spray E silicate 3001 6 1 1.6 6.692 52 Alkyl 125 Brush E silicate 3002 61 1.5 0.320 30 Alkali 24 Brush E silicate 3003 2 1 2.5 1.829 76 Alkyl110 Brush E silicate 3004 2 1 2.6 0.889 72 Alkali 24 Brush E silicate3005 7 1 126 0.072 81 Alkyl 2 Spray G silicate 3006 6 1 120 0.159 64Alkali 37 Spray E silicate 3007 7 1 7.5 1.776 69 Alkyl 113 Brush Esilicate 3008 2 1 6.5 1.933 83 Alkali 2 Spray G silicate 3009 7 1 200.500 30 Alkyl 75 Brush E silicate

TABLE 152 Percent Diameter of fine- Mg solid distribution grain solution(peak metal phase and Average diameter) of grains Zn—Mg Any of diameterZn metal among Zn Chemical component Alloy inter- MgZn2, of later-grains/Zn metal content of Zn metal grain metallic Mg2Zn11, added Znalloy grains grains/ grains/Zn alloy fracture compounds Mg2Zn3, metal(μm) Zn alloy grains surfaces present MgZn, Invention grains Fine Coarsegrains (Mass %) or cracks Average on grain Mg7Zn3 Example No (μm) metalmetal (Vol %) Zn Mg Al Si present? aspect ratio surfaces? present? 30104.52 2.97 12.12 17.75 87.3 7.5 5.2 0 Yes 1.49 Yes Yes 3011 5.96 2.3612.28 32.76 93.9 6.1 0 0.001 Yes 1.29 Yes Yes 3012 5.5 3.05 12.52 30.8982.55 16.8 0.05 0.6 Yes 1.23 Yes Yes 3013 3.6 2.57 11.9 45.90 70.7 27.51 0.8 Yes 1.23 Yes Yes 3014 16.5 2.65 11.75 42.22 94.6 2.9 0 2.5 Yes1.23 Yes Yes 3015 12.5 2.54 12.44 18.56 94 4.5 0 1.5 No 1.23 Yes Yes3016 16.5 2.85 12.03 33.57 99.43 0.07 0 0.5 Yes 1.27 Yes Yes 3017 10.92.75 10.61 31.70 96.82 3.1 0.04 0.04 Yes 1.23 Yes Yes 3018 5.6 2.46 11.346.71 76.3 20.5 1 2.2 Yes 1.36 Yes Yes 3019 22.6 2.71 11.58 47.89 68.8429.5 0.06 1.6 Yes 1.11 Yes Yes 3020 20.59 2.36 11.11 24.23 92.33 7.60.07 0 Yes 1.02 Yes Yes 3021 20.59 2.16 12.34 39.24 95.2 0.7 1.2 2.9 Yes1.05 Yes Yes 3022 9.56 2.46 12.51 37.37 91.8 4.6 1.8 1.8 Yes 1.24 YesYes 3023 5.9 2.49 11.64 50.38 82 8.3 9.2 0.5 Yes 1.33 Yes Yes 3024 6.541.63 9.16 37.14 88.2 11.8 0 0 Yes 1.27 Yes Yes 3025 21.4 1.51 9.46 13.4886.06 12.9 0 1.04 Yes 1.50 Yes Yes 3026 9.8 3.05 9.54 40.05 99.34 0.6 00.06 Yes 1.13 Yes Yes 3027 6.59 2.57 9.56 38.18 89.51 9.5 0 0.99 No 1.04Yes Yes 3028 6.54 2.65 9.46 7.63 88.3 11.7 0 0 Yes 1.02 Yes Yes 302916.5 2.54 11.99 37.95 89.9 9.4 0.7 0 Yes 1.08 Yes Yes Ratio of (Zn metalgrains or Zn alloy grains):(Later- Coating details added Mg Total Znmetal grains) content metal Zn metal Later- of all grain grains/ addedZn metal content Coat Invention Number of Zn alloy metal grains of coatBase resin thickness Coating Corrosion Example No faces grains grains(Mass %) (Mass %) type (μm) method Test Results 3010 6 1 0.007 7.448 83Alkali 30 Brush E silicate 3011 7 1 9 0.610 75 Alkyl 34 Brush E silicate3012 6 1 7.5 1.976 76 Epoxy resin 124 Brush E 3013 7 1 50 0.539 72Acrylic resin 15 Spray E 3014 6 1 0.005 2.886 71 Urethane 23 Spray Eresin 3015 2 1 25.6 0.169 82 Polyester 157 Brush E resin 3016 7 1 56.50.001 81 Epoxy resin 26 Spray E 3017 6 1 1.6 1.192 83 Acrylic resin 38Spray E 3018 6 1 3 5.125 50 Urethane 160 Brush E resin 3019 6 1 1000.292 72 Urethane 27 Brush E resin 3020 2 1 65.5 0.114 47 Epoxy resin180 Brush E 3021 6 1 1.9 0.241 47 Acrylic resin 26 Spray E 3022 7 1 2.11.484 52 Urethane 180 Brush E resin 3023 2 1 10.5 0.722 52 Urethane 15Spray E resin 3024 6 1 6.5 1.573 50 Epoxy resin 2 Spray G 3025 2 1 19.50.629 46 Acrylic resin 28 Spray E 3026 6 1 0.8 0.333 47 Urethane 30Spray E resin 3027 7 1 18.5 0.487 83 Urethane 2 Spray G resin 3028 7 14.3 2.208 52 Epoxy resin 157 Brush E 3029 2 1 3.2 2.238 89 Acrylic resin28 Brush E

TABLE 153 Percent Diameter of fine- Mg solid distribution grain solution(peak metal phase and Average diameter) of grains Zn—Mg Any of diameterZn metal among Zn Chemical component Alloy inter- MgZn2, of later-grains/Zn metal content of Zn metal grain metallic Mg2Zn11, added Znalloy grains grains/ grains/Zn alloy fracture compounds Mg2Zn3, metal(μm) Zn alloy grains surfaces present MgZn, Invention grains Fine Coarsegrains (Mass %) or cracks Average on grain Mg7Zn3 Example No (μm) metalmetal (Vol %) Zn Mg Al Si present? aspect ratio surfaces? present? 30307.8 2.85 12.08 14.29 87.8 11.7 0.5 0 Yes 1.15 Yes Yes 3031 16.5 2.7512.24 40.86 95.6 4.2 0.2 0 Yes 1.34 Yes Yes 3032 6.54 2.46 12.48 97.5097.13 2.8 0.07 0 Yes 1.25 Yes Yes 3033 8.45 2.71 11.86 13.30 86.1 13.9 00 Yes 1.19 Yes Yes 3034 8.5 2.36 11.71 43.62 82.6 14.6 1.6 1.2 No 1.18Yes Yes 3035 13.6 2.46 11.35 56.93 72.95 26.4 0.65 0 Yes 1.24 Yes Yes3036 12.33 1.45 12.02 36.59 83.23 16.5 0.27 0 Yes 1.11 Yes Yes 3037 16.52.42 13.24 39.95 79.4 19.5 0.45 0.65 Yes 1.27 Yes Yes 3038 7.9 2.11 9.4686.50 97.08 1.6 0.33 0.99 Yes 1.31 Yes Yes 3039 10.5 2.97 13.47 32.8790.5 6 1 2.5 Yes 1.26 Yes Yes 3040 16.5 2.36 9.46 16.23 88.93 8.4 0.871.8 Yes 1.14 Yes Yes 3041 10.64 3.05 13.87 37.40 86.7 13.3 0 0 Yes 1.34Yes Yes 3042 10.5 2.57 13.25 40.76 81.4 18.6 0. 0 Yes 1.16 Yes Yes 304320.59 2.65 13.1 87.31 97.34 1.8 0.86 0 No 1.47 Yes Yes 3044 8.5 2.129.08 92.50 95.25 4.1 0.65 0 Yes 1.48 Yes Yes 3045 0.5 1.65 9.87 17.9382.87 16.7 0.43 0 No 1.49 Yes Yes 3046 10.5 2.35 9.46 44.50 99 0.4 0.6 0Yes 1.34 Yes Yes 3047 11.5 1.63 9.28 96.50 89.35 10.6 0.05 0 Yes 1.29Yes Yes 3048 36.5 2.64 9.45 16.94 93.08 6.9 0.02 0 Yes 1.18 Yes Yes 30491.5 2.35 9.25 88.12 99.82 0.05 0.06 0.07 Yes 1.48 Yes Yes Ratio of (Znmetal grains or Zn alloy grains):(Later- Coating details added Mg TotalZn metal grains) content metal Zn metal Later- of all grain grains/added Zn metal content Coat Invention Number of Zn alloy metal grains ofcoat Base resin thickness Coating Corrosion Example No faces grainsgrains (Mass %) (Mass %) type (μm) method Test Results 3030 2 1 1.54.680 85 Alkyl 130 Brush E silicate 3031 6 1 4.5 0.764 53 Alkyl 29 BrushE silicate 3032 7 1 15.5 0.170 88 Epoxy resin 30 Brush E 3033 6 1 10.51.209 85 Acrylic resin 120 Brush E 3034 7 1 2.5 4.171 52 Urethane 187Brush E resin 3035 6 1 9 2.640 83 Polyester 28 Spray E resin 3036 2 110.5 0.156 88 Epoxy resin 5 Spray E 3037 2 1 5.7 2.910 49 Acrylic resin35 Spray E 3038 6 1 3.9 0.327 50 Urethane 5 Spray G resin 3039 7 1 4.51.091 51 Polyester 200 Brush E resin 3040 6 1 3.6 1.826 83 Alkali 25Spray E silicate 3041 6 1 16.4 0.764 82 Alkali 15 Spray E silicate 30422 1 6 2.657 88 Alkyl 20 Spray E silicate 3043 7 1 7.5 0.212 85 Alkali 18Spray E silicate 3044 2 1 10.5 0.357 87 Alkyl 22 Spray E silicate 3045 21 2.6 4.639 86 Alkali 19 Spray E silicate 3046 6 1 1.5 0.160 46 Alkyl 29Spray E silicate 3047 7 1 13.5 0.731 49 Alkali 23 Spray E silicate 30487 1 2.6 1.917 35 Alkyl 21 Spray E silicate 3049 6 1 6.5 0.007 30 Alkali19 Spray E silicate

TABLE 154 Percent Diameter of fine- Mg solid distribution grain solution(peak metal phase and Average diameter) of grains Zn—Mg Any of diameterZn metal among Zn Chemical component Alloy inter- MgZn2, of later-grains/Zn metal content of Zn metal grain metallic Mg2Zn11, added Znalloy grains grains/ grains/Zn alloy fracture compounds Mg2Zn3, metal(μm) Zn alloy grains surfaces present MgZn, Invention grains Fine Coarsegrains (Mass %) or cracks Average on grain Mg7Zn3 Example No (μm) metalmetal (Vol %) Zn Mg Al Si present? aspect ratio surfaces? present? 30508.7 2.31 9.46 60.57 91.56 6.4 1.05 0.99 Yes 1.27 Yes Yes 3051 7.8 2.629.46 39.48 93.36 3.5 2.6 0.54 Yes 1.17 Yes Yes 3052 5.96 2.52 9.46 15.8282.13 17.5 0.05 0.32 Yes 1.27 Yes Yes 3053 0.06 2.24 13.32 49.57 91.23.6 5.2 0 No 1.27 Yes Yes 3054 0.9 0.05 6.54 86.52 94.1 5.9 0 0.001 Yes1.48 Yes Yes 3055 3.6 2.42 6.35 90.98 83.2 16.2 0 0.6 No 1.49 Yes Yes3056 10.5 0.11 7.54 67.32 76.7 22.5 0 0.8 Yes 1.34 Yes Yes 3057 0.051.92 8.64 82.33 96.52 3.4 0.04 0.04 Yes 1.23 Yes Yes 3058 2.32 0.46 6.4573.76 68.3 26.5 3 2.2 Yes 1.23 Yes Yes 3059 20.4 0.77 6.48 88.77 72.8425.5 0.06 1.6 Yes 1.23 Yes Yes 3060 8.6 2.35 9.25 45.02 87.2 12.8 0 0Yes 1.05 Yes Yes 3061 10.5 2.33 9.46 15.2 91.5 8.5 0 0 Yes 1.06 Yes Yes3062 8.7 1.95 9.32 51.41 75.23 24.5 0.27 0 Yes 1.38 Yes Yes 3063 7.82.15 9.22 45.46 77.48 18.4 2.55 1.57 Yes 1.06 Yes Yes 3064 5.96 2.2311.62 35.19 72.62 0.08 25.5 1.8 Yes 1.49 Yes Yes 3065 1.6 2.26 11.1573.02 64.06 15.2 19.4 1.34 No 1.34 Yes Yes 3066 7.2 1.98 9.34 93.45 836.4 10.6 0 Yes 1.48 Yes Yes 3067 10.5 2.02 9.58 30.66 86.4 3.2 10.4 0 No1.49 Yes Yes 3068 3.6 2.36 12.28 32.76 80.4 6.1 13.5 0.001 Yes 1.29 YesYes 3069 4.5 3.05 12.52 30.89 70.1 16.8 12.5 0.6 Yes 1.23 Yes Yes 30707.9 2.57 11.9 45.9 60.9 27.5 10.8 0.8 Yes 1.23 Yes Yes Ratio of (Znmetal grains or Zn alloy grains):(Later- Coating details added Mg TotalZn metal grains) content metal Zn metal Later- of all grain grains/added Zn metal content Coat Invention Number of Zn alloy metal grains ofcoat Base resin thickness Coating Corrosion Example No faces grainsgrains (Mass %) (Mass %) type (μm) method Test Results 3050 7 1 1.62.462 76 Alkyl 15 Spray E silicate 3051 7 1 3.8 0.729 72 Alkali 18 SprayE silicate 3052 6 1 0.08 16.204 30 Alkyl 22 Spray E silicate 3053 7 1164.5 0.022 83 Alkyl 21 Spray E silicate 3054 2 1 3.6 1.283 75 Alkyl 29Spray E silicate 3055 7 1 8.6 1.688 76 Alkali 23 Spray E silicate 3056 71 12 1.731 72 Alkyl 21 Spray E silicate 3057 2 1 5.8 0.500 83 Alkali 19Spray E silicate 3058 6 1 10 2.409 50 Alkyl 21 Spray E silicate 3059 6 11 12.750 72 Alkali 19 Spray E silicate 3060 6 1 10.5 1.113 50 Acrylicresin 654 Spray E 3061 7 1 6.5 1.133 48 Alkali 700 Spray E silicate 30627 1 19.5 1.195 75 Alkyl 555 Spray E silicate 3063 6 1 0.8 10.222 55Alkyl 12 Spray E silicate 3064 7 1 5.3 0.013 38 Alkyl 678 Brush Esilicate 3065 2 1 4.3 2.868 48 Urethane 674 Spray E resin 3066 7 1 3.21.524 76 Polyester 325 Spray E resin 3067 7 1 1.5 1.280 72 Alkyl 665Spray E silicate 3068 2 1 4.5 1.109 75 Alkyl 354 Brush E silicate 3069 61 0.8 9.333 76 Alkyl 165 Spray E silicate 3070 6 1 6.5 3.667 72 Urethane354 Spray E resin

TABLE 155 Percent Diameter of fine- Mg solid distribution grain solution(peak metal phase and Average diameter) of grains Zn—Mg Any of diameterZn metal among Zn Chemical component Alloy inter- MgZn2, of later-grains/Zn metal content of Zn metal grain metallic Mg2Zn11, added Znalloy grains grains/ grains/Zn alloy fracture compounds Mg2Zn3, metal(μm) Zn alloy grains surfaces present MgZn, Invention grains Fine Coarsegrains (Mass %) or cracks Average on grain Mg7Zn3 Example No (μm) metalmetal (Vol %) Zn Mg Al Si present? aspect ratio surfaces? present? 307116.5 2.35 9.25 35.87 88.8 11.2 0 0 Yes 1.12 Yes Yes 3072 13.5 2.57 9.5642.04 90.6 9.4 0 0 No 1.38 Yes Yes 3073 0.96 2.56 9.84 6.55 81.45 18.5 00.5 Yes 1.22 Yes Yes 3074 0.96 2.21 9.75 43.60 99.97 0.03 0 0 Yes 1.14Yes Yes 3075 8.45 2.64 9.85 44.12 98.4 1.6 0 0 No 1.02 Yes Yes 3076 2.91.99 8.56 37.21 93.2 6.8 0 0 Yes 1.05 Yes Yes 3077 5.4 2.94 8.21 43.3884.5 13.9 0 1.6 No 1.36 No Yes 3078 10.6 2.58 8.33 13.52 98.1 1.9 0 0Yes 1.11 No Yes 3079 2.32 2.37 8 44.94 94.3 5.7 0 0 No 1.07 Yes Yes 30807.8 2.15 9.22 45.46 90.8 9.2 0 0 No 1.42 Yes Yes 3081 7.95 2.96 9.3635.96 83.3 15.4 0 1.3 Yes 1.38 No Yes 3082 20.59 2.85 9.45 42.13 79.8418.6 0 1.56 Yes 1.22 No Yes 3083 22.5 2.94 9.61 7.56 96.4 3.6 0 0 Yes1.14 Yes Yes 3084 4.6 2.11 9.85 43.69 94.6 5.4 0 0 Yes 1.13 Yes Yes 30854.9 2.68 9.23 44.21 92.4 7.6 0 0 Yes 1.02 No Yes 3086 10.5 2.99 9.0839.51 75.5 24.5 0 0 Yes 1.06 Yes Yes 3087 8.45 2.78 9.87 45.68 82.4 17.60 0 Yes 1.05 Yes Yes 3088 30.5 2.96 9.46 65.58 98.6 1.4 0 0 Yes 1.24 NoYes 3089 49.5 2.85 9.28 47.24 78.5 21.5 0 0 Yes 1.33 No Yes 3090 5.92.64 9.45 47.76 89.6 10.4 0 0 Yes 1.27 Yes Yes Ratio of (Zn metalCoating details grains or Zn alloy Ratio of fine grains):(Later- metalgrains added Zn metal in coat grains) Mg outermost Total Later- contentsurface layer metal Zn metal added of all 10% thickness grain Inventiongrains/ Zn metal to total fine content Base Coat Example Number of Znalloy Metal grains metal grains of coat resin thickness CoatingCorrosion No faces grains grains (Mass %) (Mass % (Mass %) type (μm)method Test Results 3071 2 1 5 1.867 55.7 49 Alkyl 14 Spray E silicate3072 2 1 198.7 0.047 64.5 89 Urethane 55 Spray E resin 3073 2 1 36 0.50068.9 90 Alkyl 8 Spray E silicate 3074 2 1 1.5 0.012 64.7 86 Urethane 122Brush E resin 3075 6 1 0.008 1.587 77.9 48 Alkyl 555 Spray E silicate3076 6 1 1.4 2.833 43.7 47 Alkali 19 Spray E silicate 3077 7 1 4.2 2.6737.8 47 Alkyl 25 Brush E silicate 3078 6 1 1.6 0.731 16.0 47 Alkyl 58Spray E silicate 3079 2 1 7.5 0.671 89.6 52 Alkyl 685 Spray E silicate3080 7 1 1.6 3.538 11.8 52 Alkali 19 Brush E silicate 3081 2 1 2 5.1334.6 52 Urethane 700 Spray E resin 3082 6 1 270 0.069 2.5 88 Alkyl 77Spray E silicate 3083 6 1 7.5 0.424 18.9 87 Alkyl 54 Spray E silicate3084 2 1 2.9 1.385 75.9 89 Alkyl 64 Spray E silicate 3085 2 1 2.6 2.11155.9 90 Alkyl 34 Brush E silicate 3086 7 1 0.1 22.273 53.8 91 Alkali 28Spray E silicate 3087 6 1 1.2 8.000 97.5 46 Urethane 109 Brush E resin3088 7 1 1.2 0.636 88.4 47 Alkyl 15 Spray E silicate 3089 2 1 62 0.34154.8 47 Alkyl 14 Spray E silicate 3090 7 1 2.4 3.059 45.7 49 Alkyl 18Spray E silicate

TABLE 156 Percent Diameter of fine- Mg solid distribution grain solution(peak metal phase and Average diameter) of grains Zn—Mg Any of diameterZn metal among Zn Chemical component Alloy inter- MgZn2, of later-grains/Zn metal content of Zn metal grain metallic Mg2Zn11, added Znalloy grains grains/ grains/Zn alloy fracture compounds Mg2Zn3, metal(μm) Zn alloy grains surfaces present MgZn, Invention grains Fine Coarsegrains (Mass %) or cracks Average on grain Mg7Zn3 Example No (μm) metalmetal (Vol %) Zn Mg Al Si present? aspect ratio surfaces? present? 30914.52 2.35 9.25 45.02 87.2 12.8 0 0 Yes 1.05 Yes Yes 3092 5.96 2.12 9.4647.02 92.2 7.8 0 0 Yes 1.22 No Yes 3093 5.5 2.34 9.46 7.66 70.5 29.5 0 0Yes 1.13 No Yes 3094 3.6 2.33 9.46 15.20 91.5 8.5 0 0 Yes 1.06 Yes Yes3095 16.5 2.23 9.06 43.16 74.5 25.5 0 0 Yes 1.05 Yes Yes 3096 12.5 2.129.3 49.33 99.93 0.07 0 0 Yes 1.24 Yes Yes 3097 16.5 2.21 8.68 19.47 89.210.8 0 0 No 1.05 Yes Yes 3098 10.9 1.38 8.53 69.55 86 11.2 1.6 1.2 No1.12 Yes Yes 3099 5.6 1.95 9.32 51.41 75.23 24.5 0.27 0 Yes 1.38 No Yes3100 22.6 2.26 8.95 75.88 82.6 17.4 0 0 Yes 1.13 No Yes 3101 20.59 2.0512.54 48.08 98.7 1.3 0 0 Yes 1.33 Yes Yes 3102 20.59 1.65 8.7 66.85 80.519.5 0 0 Yes 1.27 Yes Yes 3103 9.56 2.35 8.55 7.68 88.85 10.8 0.05 0.3No 1.23 No Yes 3104 5.9 1.62 8.91 8.64 87.7 11.9 0.4 0 Yes 1.11 Yes Yes3105 6.54 1.88 9.91 16.58 90.5 9.5 0 0 Yes 1.42 Yes Yes 3106 21.4 2.359.25 35.87 89.5 10.5 0 0 Yes 1.06 No Yes 3107 9.8 2.57 9.56 42.04 84.915.1 0 0 Yes 1.05 Yes Yes 3108 6.59 2.56 9.84 38.41 83.2 16.8 0 0 Yes1.07 Yes Yes 3109 6.54 2.21 9.75 6.99 89.4 10.6 0 0 Yes 1.42 No Yes 311016.5 2.64 9.85 44.12 84.3 13.3 2.4 0 Yes 1.38 Yes Yes Ratio of (Zn metalCoating details grains or Zn alloy Ratio of fine grains):(Later- metalgrains added Zn metal in coat grains) Mg outermost Total Later- contentsurface layer metal Zn metal added of all 10% thickness grain Inventiongrains/ Zn metal to total fine content Base Coat Example Number of Znalloy Metal grains metal grains of coat resin thickness CoatingCorrosion No faces grains grains (Mass %) (Mass % (Mass %) type (μm)method Test Results 3091 6 1 2.1 4.129 34.7 50 Alkali 2 Spray G silicate3092 7 1 34.5 0.220 57.9 87 Alkyl 37 Spray E silicate 3093 6 1 270 0.10965.4 83 Alkali 12 Spray E silicate 3094 7 1 32.5 0.254 87.9 48 Alkyl 160Brush E silicate 3095 6 1 3 6.375 2.9 51 Alkali 5 Brush G silicate 30962 1 1.5 0.028 12.6 51 Alkyl 56 Brush E silicate 3097 7 1 7.5 1.271 53.887 Alkali 2 Spray G silicate 3098 6 1 13.5 0.772 17.8 85 Alkyl 18 SprayE silicate 3099 6 1 5 4.083 34.7 86 Alkyl 23 Spray E silicate 3100 6 1 52.900 76.8 50 Epoxy 30 Brush E resin 3101 2 1 1 0.650 58.9 51 Acrylic 77Brush E resin 3102 6 1 120 0.161 50.8 51 Urethane 655 Brush E resin 31037 1 3.7 2.298 46.8 80 Polyester 47 Spray E resin 3104 2 1 6.1 1.676 23.746 Epoxy 43 Spray E resin 3105 6 1 198.5 0.048 53.8 51 Acrylic 52 BrushE resin 3106 2 1 2.5 3.000 53.8 86 Urethane 20 Brush E resin 3107 6 118.5 0.774 43.7 85 Polyester 200 Brush E resin 3108 7 1 8 1.867 55.9 82Alkali 22 Spray E silicate 3109 7 1 1.6 4.077 65.8 81 Alkyl 25 Spray Esilicate 3110 2 1 1.2 6.045 55.7 46 Alkali 14 Spray E silicate

TABLE 157 Percent Diameter of fine- Mg solid distribution grain solution(peak metal phase and Average diameter) of grains Zn—Mg Any of diameterZn metal among Zn Chemical component Alloy inter- MgZn2, of later-grains/Zn metal content of Zn metal grain metallic Mg2Zn11, added Znalloy grains grains/ grains/Zn alloy fracture compounds Mg2Zn3, metal(μm) Zn alloy grains surfaces present MgZn, Invention grains Fine Coarsegrains (Mass %) or cracks Average on grain Mg7Zn3 Example No (μm) metalmetal (Vol %) Zn Mg Al Si present? aspect ratio surfaces? present? 31117.8 2.65 8.56 66.99 98.6 1.4 0 0 No 1.22 Yes Yes 3112 16.5 2.94 8.2143.38 76.45 23.5 0 0.05 Yes 1.14 Yes Yes 3113 6.54 2.58 8.33 39.75 91.18.9 0 0 Yes 1.13 Yes Yes 3114 8.45 2.37 8 65.38 85.1 14.9 0 0 Yes 1.02Yes Yes 3115 8.5 2.15 9.22 45.46 77.48 18.4 2.55 1.57 Yes 1.06 Yes Yes3116 13.6 2.96 9.36 22.55 97.9 2.1 0 0 Yes 1.05 Yes Yes 3117 12.33 2.859.45 42.13 94.8 5.2 0 0 Yes 1.24 Yes Yes 3118 16.5 2.94 9.61 38.50 84.615.4 0 0 Yes 1.33 Yes Yes 3119 7.9 2.11 9.85 64.13 89.3 10.7 0 0 Yes1.27 Yes Yes 3120 10.5 2.68 9.23 44.21 83.3 16.7 0 0 Yes 1.05 Yes Yes3121 16.5 2.99 9.08 39.51 80.05 19.6 0.35 0 No 1.12 Yes Yes 3122 10.641.82 9.87 78.64 85.5 14.5 0 0 No 1.23 Yes Yes 3123 10.5 1.42 9.46 42.0585 14.2 0 0.8 No 1.36 Yes Yes 3124 20.59 2.12 9.28 64.58 87.3 12.7 0 0No 1.11 Yes Yes 3125 8.5 1.92 9.45 47.76 89.5 10.5 0 0 Yes 1.07 Yes Yes3126 0.5 2.11 9.63 24.10 87.3 11.8 0 0.9 Yes 1.42 Yes Yes 3127 10.5 2.979.16 39.11 86.4 12.8 0.5 0.3 Yes 1.38 Yes Yes 3128 11.5 2.36 10.39 19.6593.8 6.2 0 0 Yes 1.22 Yes Yes 3129 36.5 3.05 10.56 65.39 83.8 16.2 0 0Yes 1.14 Yes Yes 3130 1.5 2.15 10.74 48.57 80.4 19.6 0 0 Yes 1.13 YesYes Ratio of (Zn metal Coating details grains or Zn alloy Ratio of finegrains):(Later- metal grains added Zn metal in coat grains) Mg outermostTotal Later- content surface layer metal Zn metal added of all 10%thickness grain Invention grains/ Zn metal to total fine content BaseCoat Example Number of Zn alloy Metal grains metal grains of coat resinthickness Coating Corrosion No faces grains grains (Mass %) (Mass %(Mass %) type (μm) method Test Results 3111 2 1 0.5 0.933 64.5 47Urethane 112 Spray E resin 3112 6 1 9 2.350 68.9 48 Alkali 24 Spray Esilicate 3113 7 1 4.5 1.618 64.7 51 Urethane 150 Spray E resin 3114 6 1136 0.109 77.9 53 Alkali 18 Spray E silicate 3115 7 1 13 1.314 43.7 88Alkyl 19 Brush E silicate 3116 6 1 10.6 0.181 7.8 85 Alkyl 24 Spray Esilicate 3117 2 1 1.6 2.000 16.0 83 Urethane 99 Spray E resin 3118 2 168 0.223 89.6 82 Alkyl 7 Spray E silicate 3119 6 1 4.5 1.945 11.8 83Epoxy 100 Spray E resin 3120 7 1 10.5 1.452 4.6 47 Alkyl 27 Brush Esilicate 3121 6 1 4.9 3.322 2.5 51 Alkali 15 Spray E silicate 3122 6 110.5 1.261 18.9 52 Alkyl 14 Spray E silicate 3123 2 1 192 0.074 75.9 51Urethane 55 Spray E resin 3124 7 1 0.07 11.869 55.9 52 Alkyl 8 Spray Esilicate 3125 2 1 9.5 1.000 53.8 89 Urethane 122 Brush E resin 3126 2 12.6 3.278 97.5 85 Alkyl 54 Spray E silicate 3127 6 1 4.5 2.327 88.4 82Alkali 19 Spray E silicate 3128 7 1 3 1.550 54.8 87 Alkyl 25 Brush Esilicate 3129 7 1 7.5 1.906 45.7 88 Alkyl 58 Spray E silicate 3130 6 177 0.251 34.7 49 Alkyl 21 Spray E silicate

TABLE 158 Percent Diameter of fine- Mg solid distribution grain solution(peak metal phase and diameter) of grains Zn—Mg Any of Ave diameter Znmetal among Zn Chemical component Alloy inter- MgZn2, of later-grains/Zn metal content of Zn metal grain metallic Mg2Zn11, added Znalloy grains grains/ grains/Zn alloy fracture compounds Mg2Zn3,Invention metal (μm) Zn alloy grains surfaces present on MgZn, Examplegrains Fine Coarse grains (Mass %) or cracks Average grain Mg7Zn3 Numberof No (μm) metal metal (Vol %) Zn Mg Al Si present? aspect ratiosurfaces? present? faces 3131 8.7 2.19 10.27 24.91 87.6 12.4 0 0 Yes1.02 Yes Yes 7 3132 7.8 2.48 11.5 39.92 89.3 10.7 0 0 Yes 1.06 Yes Yes 73133 5.96 2.85 11.67 22.65 91.5 8.5 0 0 Yes 1.05 Yes Yes 6 3134 0.062.75 11.85 66.20 94.9 5.1 0 0 Yes 1.24 Yes Yes 7 3135 0.9 2.46 11.3849.38 75.5 24.5 0 0 Yes 1.33 Yes Yes 2 3136 3.6 2.71 12.61 30.58 86.513.5 0 0 Yes 1.27 Yes Yes 7 3137 10.5 2.36 12.78 45.59 80 20 0 0 Yes1.05 Yes Yes 7 3138 0.05 2.16 9.57 28.32 84.5 15.5 0 0 Yes 1.12 Yes Yes2 3139 2.32 2.46 9.81 71.87 88 10.5 1.5 0 Yes 1.23 Yes Yes 6 3140 20.42.49 8.43 53.05 92.1 7.9 0 0 Yes 1.36 Yes Yes 6 3141 7.34 2.95 8.5527.74 95.2 4.8 0 0 Yes 1.11 Yes Yes 7 3142 9.4 2.36 8.22 42.75 81.6 18.40 0 Yes 1.07 Yes Yes 7 3143 23.43 2.21 9.44 23.29 86.8 12.7 0 0.5 Yes1.42 Yes Yes 6 3144 5.96 2.25 9.58 61.12 89.7 10.3 0 0 No 1.38 Yes Yes 73145 10.64 2.44 9.67 44.30 71.2 20.8 8 0 Yes 1.22 Yes Yes 2 3146 16.52.78 9.83 23.96 97.5 2.5 0 0 No 1.14 Yes Yes 2 3147 7.95 2.15 10.0744.09 84.8 15.2 0 0 Yes 1.13 Yes Yes 6 3148 7.95 2.19 9.45 24.63 80.819.2 0 0 No 1.02 Yes Yes 7 3149 9.64 2.48 9.3 62.46 78.7 13.5 7.8 0 Yes1.06 Yes Yes 6 3150 0.96 2.59 9.99 45.64 88.1 11.9 0 0 No 1.05 Yes Yes 2Ratio of (Zn metal Coating details grains or Zn alloy Ratio of finegrains):(Later- metal grains added Zn metal in coat grains) Mg outermostTotal Later- content surface layer metal Zn metal added of all 10%thickness grain Invention grains/ Zn metal to total fine content BaseCoat Example Zn alloy Metal grains metal grains of coat resin thicknessCoating Corrosion No grains grains (Mass %) (Mass % (Mass %) type (μm)method Test Results 3131 1 10.5 1.078 57.9 50 Alkali 19 Brush E silicate3132 1 15.5 0.648 65.4 51 Urethane 56 Spray E resin 3133 1 5.8 1.25087.9 52 Alkyl 77 Spray E silicate 3134 1 1.9 1.759 2.9 53 Alkyl 12 SprayE silicate 3135 1 16.9 1.369 12.6 88 Alkyl 64 Spray E silicate 3136 11.5 5.400 53.8 85 Alkyl 34 Brush E silicate 3137 1 0.05 19.048 17.8 83Alkali 28 Spray E silicate 3138 1 215 0.072 34.7 81 Urethane 109 Brush Eresin 3139 1 4.2 2.019 55.7 80 Alkyl 15 Spray E silicate 3140 1 1.53.160 64.5 47 Alkyl 14 Spray E silicate 3141 1 4.8 0.828 68.9 49 Alkyl18 Spray E silicate 3142 1 0.5 12.267 64.7 50 Urethane 122 Brush E resin3143 1 2.3 3.848 77.9 51 Alkyl 54 Spray E silicate 3144 1 0.05 9.81043.7 52 Alkali 19 Spray E silicate 3145 1 120 0.172 7.8 83 Alkyl 25Brush E silicate 3146 1 3.7 0.532 16.0 88 Alkyl 58 Spray E silicate 31471 16.5 0.869 89.6 85 Alkyl 21 Spray E silicate 3148 1 24 0.768 11.8 83Alkali 19 Brush E silicate 3149 1 0.01 13.366 4.6 82 Urethane 56 Spray Eresin 3150 1 7.8 1.352 2.5 47 Alkyl 77 Spray E silicate

TABLE 159 Percent Diameter of fine- Mg solid distribution grain solution(peak metal phase and diameter) of grains Zn—Mg Any of Ave diameter Znmetal among Zn Chemical component Alloy inter- MgZn2, of later-grains/Zn metal content of Zn metal grain metallic Mg2Zn11, added Znalloy grains grains/ grains/Zn alloy fracture compounds Mg2Zn3,Invention metal (μm) Zn alloy grains surfaces present on MgZn, Examplegrains Fine Coarse grains (Mass %) or cracks Average grain Mg7Zn3 Numberof No (μm) metal metal (Vol %) Zn Mg Al Si present? aspect ratiosurfaces? present? faces 3151 5.26 2.47 9.58 25.30 88.5 10.6 0 0.9 Yes1.24 Yes Yes 2 3152 13.5 2.69 9.4 42.84 84.6 15.4 0 0 Yes 1.33 Yes Yes 73153 13.5 2.57 9.57 25.44 97.4 2.6 0 0 Yes 1.27 Yes Yes 6 3154 9.64 2.499.54 63.27 83.3 16.7 0 0 Yes 1.37 Yes Yes 7 3155 16.5 2.68 9.58 46.4591.9 8.1 0 0 Yes 1.10 Yes Yes 7 3156 20.59 2.35 9.25 46.45 86.3 13.7 0 0Yes 1.04 Yes Yes 6 3157 0.96 2.48 10.04 50.91 81.5 18.5 0 0 Yes 1.02 YesYes 2 3158 6.54 2.13 11.27 27.25 97.6 2.4 0 0 Yes 1.01 Yes Yes 7 31595.26 1.93 11.44 42.26 89.1 10.9 0 0 Yes 1.08 Yes Yes 2 3160 10.64 2.058.9 33.69 92.8 7.2 0 0 Yes 1.14 Yes Yes 2 3161 9.64 1.42 8.75 48.7081.96 17.5 0.5 0.04 No 1.23 Yes Yes 7 3162 6.9 1.46 9.44 29.24 85.4 14.60 0 No 1.33 Yes Yes 2 3163 10.5 1.75 9.03 67.07 90.6 9.4 0 0 Yes 1.37Yes Yes 7 3164 13.5 1.86 8.85 50.25 92.9 7.1 0 0 Yes 1.44 Yes Yes 2 316520.59 1.74 8.95 29.91 77.5 22.5 0 0 Yes 1.21 Yes Yes 6 3166 7.82 1.9612.54 87.50 84.8 13.7 1.5 0 No 1.22 Yes Yes 6 3167 5.26 1.65 8.7 30.5887.1 12.9 0 0 No 1.23 Yes Yes 7 3168 7.06 2.35 8.55 68.41 95.7 4.3 0 0Yes 1.47 Yes Yes 6 3169 0.64 1.62 10.72 54.59 80.2 17.6 1 1.2 No 1.01Yes Yes 2 3170 46.8 2.25 9.9 34.25 98.8 0.6 0.6 0 Yes 1.04 Yes Yes 2Ratio of (Zn metal Coating details grains or Zn alloy Ratio of finegrains):(Later- metal grains added Zn metal in coat grains) Mg outermostTotal Later- content surface layer metal Zn metal added of all 10%thickness grain Invention grains/ Zn metal to total fine content BaseCoat Example Zn alloy Metal grains metal grains of coat resin thicknessCoating Corrosion No grains grains (Mass %) (Mass % (Mass %) type (μm)method Test Results 3151 1 1.6 4.077 18.9 46 Alkyl 54 Spray E silicate3152 1 3.2 3.667 75.9 49 Alkali 2 Spray G silicate 3153 1 5.4 0.406 55.950 Alkali 20 Spray E silicate 3154 1 220 0.076 53.8 51 Alkali 5 Spray Gsilicate 3155 1 2.2 2.531 97.5 83 Alkyl 20 Spray E silicate 3156 1 2.83.605 88.4 82 Alkali 15 Brush E silicate 3157 1 12 1.423 54.8 88 Alkyl57 Brush E silicate 3158 1 10.6 0.207 45.7 85 Alkali 13 Brush E silicate3159 1 35 0.303 34.7 86 Alkyl 22 Brush E silicate 3160 1 125.5 0.05757.9 47 Alkali 20 Spray E silicate 3161 1 6 2.500 65.4 48 Alkyl 27 SprayE silicate 3162 1 34 0.417 87.9 50 Alkali 15 Spray E silicate 3163 1 1.63.615 2.9 51 Alkyl 35 Spray E silicate 3164 1 7.5 0.835 12.6 52 Alkali34 Brush E silicate 3165 1 200 0.112 53.8 88 Alkyl 45 Brush E silicate3166 1 7.5 1.612 17.8 89 Alkali 52 Brush E silicate 3167 1 3.2 3.07134.7 86 Alkyl 23 Brush E silicate 3168 1 2.6 1.194 76.8 87 Alkali 5Spray E silicate 3169 1 3 4.400 58.9 86 Alkyl 52 Brush E silicate 3170 115.2 0.037 50.8 46 Alkali 150 Brush E silicate

TABLE 160 Percent Diameter of fine- Mg solid distribution grain solution(peak metal phase and diameter) of grains Zn—Mg Any of Ave diameter Znmetal among Zn Chemical component Alloy inter- MgZn2, of later-grains/Zn metal content of Zn metal grain metallic Mg2Zn11, added Znalloy grains grains/ grains/Zn alloy fracture compounds Mg2Zn3,Invention metal (μm) Zn alloy grains surfaces present on MgZn, Examplegrains Fine Coarse grains (Mass %) or cracks Average grain Mg7Zn3 Numberof No (μm) metal metal (Vol %) Zn Mg Al Si present? aspect ratiosurfaces? present? faces 3171 16.5 2.36 9.57 37.61 86.9 10.3 1.6 1.2 Yes1.05 Yes Yes 2 3172 13.5 2.24 10.79 45.60 92.98 7 0.02 0 Yes 1.12 YesYes 2 3173 0.96 2.46 10.93 46.70 75.5 23.5 1 0 Yes 1.11 Yes Yes 2 31740.96 1.56 11.02 41.22 82.5 17.5 0 0 No 1.08 Yes Yes 2 3175 8.45 1.2411.18 45.68 80.1 12.4 7.5 0 Yes 1.47 Yes Yes 6 3176 2.9 1.68 11.42 22.0285.09 14.9 0 0.01 Yes 1.50 Yes Yes 6 3177 5.4 2.65 10.8 37.03 78.7 20.70 0.6 No 1.13 Yes Yes 7 3178 10.6 2.22 10.65 28.46 91.29 8.6 0 0.11 Yes1.26 Yes Yes 6 3179 2.32 2.45 11.34 43.47 85.8 14.2 0 0 Yes 1.14 Yes Yes2 3180 7.8 2.23 11.62 35.19 98.12 0.08 0 1.8 Yes 1.49 Yes Yes 7 31817.95 2.26 11.15 73.02 83.46 15.2 0 1.34 No 1.34 Yes Yes 2 3182 20.592.72 12.38 56.20 73.17 17.4 9 0.43 Yes 1.18 Yes Yes 6 3183 22.5 2.1312.55 35.86 98.6 0.8 0.6 0 Yes 1.17 Yes Yes 6 3184 4.6 1.98 9.34 93.4593.55 6.4 0.05 0 Yes 1.48 Yes Yes 2 3185 4.9 2.02 9.58 30.66 96.78 3.20.02 0 No 1.49 Yes Yes 2 3186 10.5 2.21 9.88 74.21 83 9.2 7.8 0 Yes 1.27Yes Yes 7 3187 8.45 2.55 10 55.39 70.92 19.2 9.88 0 Yes 1.17 Yes Yes 63188 30.5 1.92 10.67 30.08 80.25 15.1 4.65 0 Yes 1.16 Yes Yes 7 318949.5 1.96 11.89 45.09 81.85 14.5 3.65 0 Yes 1.27 Yes Yes 2 3190 5.9 2.1112.03 41.41 89.45 10.5 0.05 0 Yes 1.27 Yes Yes 7 Ratio of (Zn metalCoating details grains or Zn alloy Ratio of fine grains):(Later- metalgrains added Zn metal in coat grains) Mg outermost Total Later- contentsurface layer metal Zn metal added of all 10% thickness grain Inventiongrains/ Zn metal to total fine content Base Coat Example Zn alloy Metalgrains metal grains of coat resin thickness Coating Corrosion No grainsgrains (Mass %) (Mass % (Mass %) type (μm) method Test Results 3171 10.09 9.450 46.8 49 Alkyl 60 Brush E silicate 3172 1 13.5 0.483 23.7 35Alkali 15 Spray E silicate 3173 1 135.4 0.172 53.8 37 Alkyl 24 Spray Esilicate 3174 1 3 4.375 53.8 36 Alkali 34 Spray E silicate 3175 1 7.81.409 43.7 38 Alkyl 20 Brush E silicate 3176 1 10.2 1.330 55.9 48 Alkali200 Brush E silicate 3177 1 7 2.588 65.8 46 Alkyl 56 Brush E silicate3178 1 225.2 0.038 55.7 51 Alkali 34 Spray E silicate 3179 1 5.4 2.21964.5 46 Alkyl 2 Spray G silicate 3180 1 3.2 0.019 68.9 38 Alkali 15Spray E silicate 3181 1 13.5 1.048 64.7 48 Alkali 10 Spray E silicate3182 1 1.6 6.692 77.9 52 Alkyl 125 Brush E silicate 3183 1 1.5 0.32043.7 30 Alkali 24 Brush E silicate 3184 1 2.5 1.829 7.8 76 Alkyl 110Brush E silicate 3185 1 2.6 0.889 16.0 72 Alkali 24 Brush E silicate3186 1 126 0.072 89.6 81 Alkyl 2 Spray G silicate 3187 1 120 0.159 11.864 Alkali 37 Spray E silicate 3188 1 7.5 1.776 4.6 69 Alkyl 113 Brush Esilicate 3189 1 6.5 1.933 2.5 83 Alkali 2 Spray G silicate 3190 1 200.500 18.9 30 Alkyl 75 Brush E silicate

TABLE 161 Percent Diameter of fine- Mg solid distribution grain solution(peak metal phase and diameter) of grains Zn—Mg Any of Ave diameter Znmetal among Zn Chemical component Alloy inter- MgZn2, of later-grains/Zn metal content of Zn metal grain metallic Mg2Zn11, added Znalloy grains grains/ grains/Zn alloy fracture compounds Mg2Zn3,Invention metal (μm) Zn alloy grains surfaces present on MgZn, Examplegrains Fine Coarse grains (Mass %) or cracks Average grain Mg7Zn3 Numberof No (μm) metal metal (Vol %) Zn Mg Al Si present? aspect ratiosurfaces? present? faces 3191 4.52 2.97 12.12 17.75 87.3 7.5 5.2 0 Yes1.49 Yes Yes 6 3192 5.96 2.36 12.28 32.76 93.9 6.1 0 0.001 Yes 1.29 YesYes 7 3193 5.5 3.05 12.52 30.89 82.55 16.8 0.05 0.6 Yes 1.23 Yes Yes 63194 3.6 2.57 11.9 45.90 70.7 27.5 1 0.8 Yes 1.23 Yes Yes 7 3195 16.52.65 11.75 42.22 94.6 2.9 0 2.5 Yes 1.23 Yes Yes 6 3196 12.5 2.54 12.4418.56 94 4.5 0 1.5 No 1.23 Yes Yes 2 3197 16.5 2.85 12.03 33.57 99.430.07 0 0.5 Yes 1.27 Yes Yes 7 3198 10.9 2.75 10.61 31.70 96.82 3.1 0.040.04 Yes 1.23 Yes Yes 6 3199 5.6 2.46 11.3 46.71 76.3 20.5 1 2.2 Yes1.36 Yes Yes 6 3200 22.6 2.71 11.58 47.89 68.84 29.5 0.06 1.6 Yes 1.11Yes Yes 6 3201 20.59 2.36 11.11 24.23 92.33 7.6 0.07 0 Yes 1.02 Yes Yes2 3202 20.59 2.16 12.34 39.24 95.2 0.7 1.2 2.9 Yes 1.05 Yes Yes 6 32039.56 2.46 12.51 37.37 91.8 4.6 1.8 1.8 Yes 1.24 Yes Yes 7 3204 5.9 2.4911.64 50.38 82 8.3 9.2 0.5 Yes 1.33 Yes Yes 2 3205 6.54 1.63 9.16 37.1488.2 11.8 0 0 Yes 1.27 Yes Yes 6 3206 21.4 1.51 9.46 13.48 86.06 12.9 01.04 Yes 1.50 Yes Yes 2 3207 9.8 3.05 9.54 40.05 99.34 0.6 0 0.06 Yes1.13 Yes Yes 6 3208 6.59 2.57 9.56 38.18 89.51 9.5 0 0.99 No 1.04 YesYes 7 3209 6.54 2.65 9.46 7.63 88.3 11.7 0 0 Yes 1.02 Yes Yes 7 321016.5 2.54 11.99 37.95 89.9 9.4 0.7 0 Yes 1.08 Yes Yes 2 Ratio of (Znmetal Coating details grains or Zn alloy Ratio of fine grains):(Later-metal grains added Zn metal in coat grains) Mg outermost Total Later-content surface layer metal Zn metal added of all 10% thickness grainInvention grains/ Zn metal to total fine content Base Coat Example Znalloy Metal grains metal grains of coat resin thickness CoatingCorrosion No grains grains (Mass %) (Mass % (Mass %) type (μm) methodTest Results 3191 1 0.007 7.448 75.9 83 Alkali 30 Brush E silicate 31921 9 0.610 55.9 75 Alkyl 34 Brush E silicate 3193 1 7.5 1.976 53.8 76Epoxy 124 Brush E resin 3194 1 50 0.539 97.5 72 Acrylic 15 Spray E resin3195 1 0.005 2.886 88.4 71 Urethane 23 Spray E resin 3196 1 25.6 0.16954.8 82 Polyester 157 Brush E resin 3197 1 56.5 0.001 45.7 81 Epoxy 26Spray E resin 3198 1 1.6 1.192 34.7 83 Acrylic 38 Spray E resin 3199 1 35.125 57.9 50 Urethane 160 Brush E resin 3200 1 100 0.292 65.4 72Polyester 27 Brush E resin 3201 1 65.5 0.114 87.9 47 Epoxy 180 Brush Eresin 3202 1 1.9 0.241 2.9 47 Acrylic 26 Spray E resin 3203 1 2.1 1.48412.6 52 Urethane 180 Brush E resin 3204 1 10.5 0.722 53.8 52 Polyester15 Spray E resin 3205 1 6.5 1.573 17.8 50 Epoxy 2 Spray G resin 3206 119.5 0.629 34.7 46 Acrylic 28 Spray E resin 3207 1 0.8 0.333 55.7 47Urethane 30 Spray E resin 3208 1 18.5 0.487 64.5 83 Polyester 2 Spray Gresin 3209 1 4.3 2.208 68.9 52 Epoxy 157 Brush E resin 3210 1 3.2 2.23864.7 89 Acrylic 28 Brush E resin

TABLE 162 Percent Diameter of fine- Mg solid distribution grain solution(peak metal phase and diameter) of grains Zn—Mg Any of Ave diameter Znmetal among Zn Chemical component Alloy inter- MgZn2, of later-grains/Zn metal content of Zn metal grain metallic Mg2Zn11, added Znalloy grains grains/ grains/Zn alloy fracture compounds Mg2Zn3,Invention metal (μm) Zn alloy grains surfaces present on MgZn, Examplegrains Fine Coarse grains (Mass %) or cracks Average grain Mg7Zn3 Numberof No (μm) metal metal (Vol %) Zn Mg Al Si present? aspect ratiosurfaces? present? faces 3211 7.8 2.85 12.08 14.29 87.8 11.7 0.5 0 Yes1.15 Yes Yes 2 3212 16.5 2.75 12.24 40.86 95.6 4.2 0.2 0 Yes 1.34 YesYes 6 3213 6.54 2.46 12.48 97.50 97.13 2.8 0.07 0 Yes 1.25 Yes Yes 73214 8.45 2.71 11.86 13.30 86.1 13.9 0 0 Yes 1.19 Yes Yes 6 3215 8.52.36 11.71 43.62 82.6 14.6 1.6 1.2 No 1.18 Yes Yes 7 3216 13.6 2.4611.35 56.93 72.95 26.4 0.65 0 Yes 1.24 Yes Yes 6 3217 12.33 1.45 12.0236.59 83.23 16.5 0.27 0 Yes 1.11 Yes Yes 2 3218 16.5 2.42 13.24 39.9579.4 19.5 0.45 0.65 Yes 1.27 Yes Yes 2 3219 7.9 2.11 9.46 86.50 97.081.6 0.33 0.99 Yes 1.31 Yes Yes 6 3220 10.5 2.97 13.47 32.87 90.5 6 1 2.5Yes 1.26 Yes Yes 7 3221 16.5 2.36 9.46 16.23 88.93 8.4 0.87 1.8 Yes 1.14Yes Yes 6 3222 10.64 3.05 13.87 37.40 86.7 13.3 0 0 Yes 1.34 Yes Yes 63223 10.5 2.57 13.25 40.76 81.4 18.6 0. 0 Yes 1.16 Yes Yes 2 3224 20.592.65 13.1 87.31 97.34 1.8 0.86 0 No 1.47 Yes Yes 7 3225 8.5 2.12 9.0892.50 95.25 4.1 0.65 0 Yes 1.48 Yes Yes 2 3226 0.5 1.65 9.87 17.93 82.8716.7 0.43 0 No 1.49 Yes Yes 2 3227 10.5 2.35 9.46 44.50 99 0.4 0.6 0 Yes1.34 Yes Yes 6 3228 11.5 1.63 9.28 96.50 89.35 10.6 0.05 0 Yes 1.29 YesYes 7 3229 36.5 2.64 9.45 16.94 93.08 6.9 0.02 0 Yes 1.18 Yes Yes 7 32301.5 2.35 9.25 88.12 99.82 0.05 0.06 0.07 Yes 1.48 Yes Yes 6 Ratio of (Znmetal Coating details grains or Zn alloy Ratio of fine grains):(Later-metal grains added Zn metal in coat grains) Mg outermost Total Later-content surface layer metal Zn metal added of all 10% thickness grainInvention grains/ Zn metal to total fine content Base Coat Example Znalloy Metal grains metal grains of coat resin thickness CoatingCorrosion No grains grains (Mass %) (Mass % (Mass %) type (μm) methodTest Results 3211 1 1.5 4.680 77.9 85 Alkyl 130 Brush E silicate 3212 14.5 0.764 43.7 53 Alkyl 29 Brush E silicate 3213 1 15.5 0.170 7.8 88Epoxy 30 Brush E resin 3214 1 10.5 1.209 16.0 85 Acrylic 120 Brush Eresin 3215 1 2.5 4.171 89.6 52 Urethane 187 Brush E resin 3216 1 9 2.64011.8 83 Polyester 28 Spray E resin 3217 1 10.5 0.156 4.6 88 Epoxy 5Spray E resin 3218 1 5.7 2.910 2.5 49 Acrylic 35 Spray E resin 3219 13.9 0.327 18.9 50 Urethane 5 Spray G resin 3220 1 4.5 1.091 75.9 51Polyester 200 Brush E resin 3221 1 3.6 1.826 55.9 83 Alkali 25 Spray Esilicate 3222 1 16.4 0.764 53.8 82 Alkali 15 Spray E silicate 3223 1 62.657 97.5 88 Alkyl 20 Spray E silicate 3224 1 7.5 0.212 88.4 85 Alkali18 Spray E silicate 3225 1 10.5 0.357 54.8 87 Alkyl 22 Spray E silicate3226 1 2.6 4.639 45.7 86 Alkali 19 Spray E silicate 3227 1 1.5 0.16034.7 46 Alkyl 29 Spray E silicate 3228 1 13.5 0.731 57.9 49 Alkali 23Spray E silicate 3229 1 2.6 1.917 65.4 35 Alkyl 21 Spray E silicate 32301 6.5 0.007 87.9 30 Alkali 19 Spray E silicate

TABLE 163 Percent Diameter of fine- Mg solid distribution grain solution(peak metal phase and diameter) of grains Zn—Mg Any of Ave diameter Znmetal among Zn Chemical component Alloy inter- MgZn2, of later-grains/Zn metal content of Zn metal grain metallic Mg2Zn11, added Znalloy grains grains/ grains/Zn alloy fracture compounds Mg2Zn3,Invention metal (μm) Zn alloy grains surfaces present on MgZn, Examplegrains Fine Coarse grains (Mass %) or cracks Average grain Mg7Zn3 Numberof No (μm) metal metal (Vol %) Zn Mg Al Si present? aspect ratiosurfaces? present? faces 3231 8.7 2.31 9.46 60.57 91.56 6.4 1.05 0.99Yes 1.27 Yes Yes 7 3232 7.8 2.62 9.46 39.48 93.36 3.5 2.6 0.54 Yes 1.17Yes Yes 7 3233 5.96 2.52 9.46 15.82 82.13 17.5 0.05 0.32 Yes 1.27 YesYes 6 3234 0.06 2.24 13.32 49.57 91.2 3.6 5.2 0 No 1.27 Yes Yes 7 32350.9 0.05 6.54 86.52 94.1 5.9 0 0.001 Yes 1.48 Yes Yes 2 3236 3.6 2.426.35 90.98 83.2 16.2 0 0.6 No 1.49 Yes Yes 7 3237 10.5 0.11 7.54 67.3276.7 22.5 0 0.8 Yes 1.34 Yes Yes 7 3238 0.05 1.92 8.64 82.33 96.52 3.40.04 0.04 Yes 1.23 Yes Yes 2 3239 2.32 0.46 6.45 73.76 68.3 26.5 3 2.2Yes 1.23 Yes Yes 6 3240 20.4 0.77 6.48 88.77 72.84 25.5 0.06 1.6 Yes1.23 Yes Yes 6 3241 8.6 2.35 9.25 45.02 87.2 12.8 0 0 Yes 1.05 Yes Yes 63242 10.5 2.33 9.46 15.2 91.5 8.5 0 0 Yes 1.06 Yes Yes 7 3243 8.7 1.959.32 51.41 75.23 24.5 0.27 0 Yes 1.38 Yes Yes 7 3244 7.8 2.15 9.22 45.4677.48 18.4 2.55 1.57 Yes 1.06 Yes Yes 6 3245 5.96 2.23 11.62 35.19 72.620.08 25.5 1.8 Yes 1.49 Yes Yes 7 3246 1.6 2.26 11.15 73.02 64.06 15.219.4 1.34 No 1.34 Yes Yes 2 3247 7.2 1.98 9.34 93.45 83 6.4 10.6 0 Yes1.48 Yes Yes 7 3248 10.5 2.02 9.58 30.66 86.4 3.2 10.4 0 No 1.49 Yes Yes7 3249 3.6 2.36 12.28 32.76 80.4 6.1 13.5 0.001 Yes 1.29 Yes Yes 2 32504.5 3.05 12.52 30.89 70.1 16.8 12.5 0.6 Yes 1.23 Yes Yes 6 3251 7.9 2.5711.9 45.9 60.9 27.5 10.8 0.8 Yes 1.23 Yes Yes 6 Ratio of (Zn metalCoating details grains or Zn alloy Ratio of fine grains):(Later- metalgrains added Zn metal in coat grains) Mg outermost Total Later- contentsurface layer metal Zn metal added of all 10% thickness grain Inventiongrains/ Zn metal to total fine content Base Coat Example Zn alloy Metalgrains metal grains of coat resin thickness Coating Corrosion No grainsgrains (Mass %) (Mass % (Mass %) type (μm) method Test Results 3231 11.6 2.462 2.9 76 Alkyl 15 Spray E silicate 3232 1 3.8 0.729 12.6 72Alkali 18 Spray E silicate 3233 1 0.08 16.204 53.8 30 Alkyl 22 Spray Esilicate 3234 1 164.5 0.022 17.8 83 Alkyl 21 Spray E silicate 3235 1 3.61.283 34.7 75 Alkyl 29 Spray E silicate 3236 1 8.6 1.688 76.8 76 Alkali23 Spray E silicate 3237 1 12 1.731 58.9 72 Alkyl 21 Spray E silicate3238 1 5.8 0.500 50.8 83 Alkali 19 Spray E silicate 3239 1 10 2.409 46.850 Alkyl 21 Spray E silicate 3240 1 1 12.750 23.7 72 Alkali 19 Spray Esilicate 3241 1 10.5 1.113 87.9 50 Acrylic 654 Spray E resin 3242 1 6.51.133 2.9 48 Alkali 700 Spray E silicate 3243 1 19.5 1.195 12.6 75 Alkyl555 Spray E silicate 3244 1 0.8 10.222 53.8 55 Alkyl 12 Spray E silicate3245 1 5.3 0.013 17.8 38 Alkyl 152 Brush E silicate 3246 1 4.3 2.86834.7 48 Urethane 674 Spray E resin 3247 1 3.2 1.524 76.8 76 Polyester325 Spray E resin 3248 1 1.5 1.280 58.9 72 Alkyl 665 Spray E silicate3249 1 4.5 1.109 50.8 75 Alkyl 354 Brush E silicate 3250 1 0.8 9.33346.8 76 Alkyl 165 Spray E silicate 3251 1 6.5 3.667 23.7 72 Urethane 354Spray E resin

TABLE 164 Percent Diameter of fine- Mg solid distribution grain solution(peak metal phase and diameter) of grains Zn—Mg Any of Ave diameter Znmetal among Zn Chemical component Alloy inter- MgZn2, of later-grains/Zn metal content of Zn metal grain metallic Mg2Zn11, added Znalloy grains grains/ grains/Zn alloy fracture compounds Mg2Zn3,Invention metal (μm) Zn alloy grains surfaces present on MgZn, Examplegrains Fine Coarse grains (Mass %) or cracks Average grain Mg7Zn3 Numberof No (μm) metal metal (Vol %) Zn Mg Al Si present? aspect ratiosurfaces? present? faces 3252 16.5 2.35 9.25 35.87 88.8 11.2 0 0 Yes1.12 Yes Yes 2 3253 13.5 2.57 9.56 42.04 90.6 9.4 0 0 No 1.38 Yes Yes 23254 0.96 2.56 9.84 6.55 81.45 18.5 0 0.05 Yes 1.22 Yes Yes 2 3255 0.962.21 9.75 43.60 99.97 0.03 0 0 Yes 1.14 Yes Yes 2 3256 8.45 2.64 9.8544.12 98.4 1.6 0 0 No 1.02 Yes Yes 6 3257 2.9 1.99 8.56 37.21 93.2 6.8 00 Yes 1.05 Yes Yes 6 3258 5.4 2.94 8.21 43.38 84.5 13.9 0 1.6 No 1.36 NoYes 7 3259 10.6 2.58 8.33 13.52 98.1 1.9 0 0 Yes 1.11 No Yes 6 3260 2.322.37 8 44.94 94.3 5.7 0 0 No 1.07 Yes Yes 2 3261 7.8 2.15 9.22 45.4690.8 9.2 0 0 No 1.42 Yes Yes 7 3262 7.95 2.96 9.36 35.96 83.3 15.4 0 1.3Yes 1.38 No Yes 2 3263 20.59 2.85 9.45 42.13 79.84 18.6 0 1.56 Yes 1.22No Yes 6 3264 22.5 2.94 9.61 7.56 96.4 3.6 0 0 Yes 1.14 Yes Yes 6 32654.6 2.11 9.85 43.69 94.6 5.4 0 0 Yes 1.13 Yes Yes 2 3266 4.9 2.68 9.2344.21 92.4 7.6 0 0 Yes 1.02 No Yes 2 3267 10.5 2.99 9.08 39.51 75.5 24.50 0 Yes 1.06 Yes Yes 7 3268 8.45 2.78 9.87 45.68 82.4 17.6 0 0 Yes 1.05Yes Yes 6 3269 30.5 2.96 9.46 65.58 98.6 1.4 0 0 Yes 1.24 No Yes 7 327049.5 2.85 9.28 47.24 78.5 21.5 0 0 Yes 1.33 No Yes 2 3271 5.9 2.64 9.4547.76 89.6 10.4 0 0 Yes 1.27 Yes Yes 7 Ratio of (Zn metal Coatingdetails grains or Zn alloy Ratio of fine grains):(Later- metal grainsadded Zn metal in coat grains) Mg outermost Total Later- content surfacelayer metal Zn metal added of all 10% thickness grain Invention grains/Zn metal to total fine content Base Coat Example Zn alloy Metal grainsmetal grains of coat resin thickness Coating Corrosion No grains grains(Mass %) (Mass % (Mass %) type (μm) method Test Results 3252 1 5 1.86755.7 49 Alkyl 14 Spray E silicate 3253 1 198.7 0.047 64.5 89 Urethane 55Spray E resin 3254 1 36 0.500 68.9 90 Alkyl 8 Spray E silicate 3255 11.5 0.012 64.7 86 Urethane 122 Brush E resin 3256 1 0.008 1.587 77.9 48Alkyl 555 Spray E silicate 3257 1 1.4 2.833 43.7 47 Alkali 19 Spray Esilicate 3258 1 4.2 2.673 7.8 47 Alkyl 25 Brush E silicate 3259 1 1.60.731 16.0 47 Alkyl 58 Spray E silicate 3260 1 7.5 0.671 89.6 52 Alkyl685 Spray E silicate 3261 1 1.6 3.538 11.8 52 Alkali 19 Brush E silicate3262 1 2 5.133 4.6 52 Urethane 700 Spray E resin 3263 1 270 0.069 2.5 88Alkyl 77 Spray E silicate 3264 1 7.5 0.424 18.9 87 Alkyl 54 Spray Esilicate 3265 1 2.9 1.385 75.9 89 Alkyl 64 Spray E silicate 3266 1 2.62.111 55.9 90 Alkyl 34 Brush E silicate 3267 1 0.1 22.273 53.8 91 Alkali28 Spray E silicate 3268 1 1.2 8.000 97.5 46 Urethane 109 Brush E resin3269 1 1.2 0.636 88.4 47 Alkyl 15 Spray E silicate 3270 1 62 0.341 54.847 Alkyl 14 Spray E silicate 3271 1 2.4 3.059 45.7 49 Alkyl 18 Spray Esilicate

TABLE 165 Percent Diameter of fine- Mg solid distribution grain solution(peak metal phase and diameter) of grains Zn—Mg Any of Ave diameter Znmetal among Zn Chemical component Alloy inter- MgZn2, of later-grains/Zn metal content of Zn metal grain metallic Mg2Zn11, added Znalloy grains grains/ grains/Zn alloy fracture compounds Mg2Zn3,Invention metal (μm) Zn alloy grains surfaces present on MgZn, Examplegrains Fine Coarse grains (Mass %) or cracks Average grain Mg7Zn3 Numberof No (μm) metal metal (Vol %) Zn Mg Al Si present? aspect ratiosurfaces? present? faces 3272 4.52 2.35 9.25 45.02 87.2 12.8 0 0 Yes1.05 Yes Yes 6 3273 5.96 2.12 9.46 47.02 92.2 7.8 0 0 Yes 1.22 No Yes 73274 5.5 2.34 9.46 7.66 70.5 29.5 0 0 Yes 1.13 No Yes 6 3275 3.6 2.339.46 15.20 91.5 8.5 0 0 Yes 1.06 Yes Yes 7 3276 16.5 2.23 9.06 43.1674.5 25.5 0 0 Yes 1.05 Yes Yes 6 3277 12.5 2.12 9.3 49.33 99.93 0.07 0 0Yes 1.24 Yes Yes 2 3278 16.5 2.21 8.68 19.47 89.2 10.8 0 0 No 1.05 YesYes 7 3279 10.9 1.38 8.53 69.55 86 11.2 1.6 1.2 No 1.12 Yes Yes 6 32805.6 1.95 9.32 51.41 75.23 24.5 0.27 0 Yes 1.38 No Yes 6 3281 22.6 2.268.95 75.88 82.6 17.4 0 0 Yes 1.13 No Yes 6 3282 20.59 2.05 12.54 48.0898.7 1.3 0 0 Yes 1.33 Yes Yes 2 3283 20.59 1.65 8.7 66.85 80.5 19.5 0 0Yes 1.27 Yes Yes 6 3284 9.56 2.35 8.55 7.68 88.85 10.8 0.05 0.3 No 1.23No Yes 7 3285 5.9 1.62 8.91 8.64 87.7 11.9 0.4 0 Yes 1.11 Yes Yes 2 32866.54 1.88 9.91 16.58 90.5 9.5 0 0 Yes 1.42 Yes Yes 6 3287 21.4 2.35 9.2535.87 89.5 10.5 0 0 Yes 1.06 No Yes 2 3288 9.8 2.57 9.56 42.04 84.9 15.10 0 Yes 1.05 Yes Yes 6 3289 6.59 2.56 9.84 38.41 83.2 16.8 0 0 Yes 1.07Yes Yes 7 3290 6.54 2.21 9.75 6.99 89.4 10.6 0 0 Yes 1.42 No Yes 7 329116.5 2.64 9.85 44.12 84.3 13.3 2.4 0 Yes 1.38 Yes Yes 2 Ratio of (Znmetal Coating details grains or Zn alloy Ratio of fine grains):(Later-metal grains added Zn metal in coat grains) Mg outermost Total Later-content surface layer metal Zn metal added of all 10% thickness grainInvention grains/ Zn metal to total fine content Base Coat Example Znalloy Metal grains metal grains of coat resin thickness CoatingCorrosion No grains grains (Mass %) (Mass % (Mass %) type (μm) methodTest Results 3272 1 2.1 4.129 34.7 50 Alkali 2 Spray G silicate 3273 134.5 0.220 57.9 87 Alkyl 37 Spray E silicate 3274 1 270 0.109 65.4 83Alkali 12 Spray E silicate 3275 1 32.5 0.254 87.9 48 Alkyl 160 Brush Esilicate 3276 1 3 6.375 2.9 51 Alkali 5 Brush G silicate 3277 1 1.50.028 12.6 51 Alkyl 56 Brush E silicate 3278 1 7.5 1.271 53.8 87 Alkali2 Spray E silicate 3279 1 13.5 0.772 17.8 85 Alkyl 18 Spray E silicate3280 1 5 4.083 34.7 86 Alkyl 23 Spray E silicate 3281 1 5 2.900 76.8 50Epoxy 30 Brush E resin 3282 1 1 0.650 58.9 51 Acrylic 77 Brush E resin3283 1 120 0.161 50.8 51 Urethane 655 Brush E resin 3284 1 3.7 2.29846.8 80 Polyester 47 Spray E resin 3285 1 6.1 1.676 23.7 46 Epoxy 43Spray E resin 3286 1 198.5 0.048 53.8 51 Acrylic 52 Brush E resin 3287 12.5 3.000 53.8 86 Urethane 20 Brush E resin 3288 1 18.5 0.774 43.7 85Polyester 200 Brush E resin 3289 1 8 1.867 55.9 82 Alkali 22 Spray Esilicate 3290 1 1.6 4.077 65.8 81 Alkyl 25 Spray E silicate 3291 1 1.26.045 55.7 46 Alkali 14 Spray E silicate

TABLE 166 Percent Diameter of fine- Mg solid distribution grain solution(peak metal phase and diameter) of grains Zn—Mg Any of Ave diameter Znmetal among Zn Chemical component Alloy inter- MgZn2, of later-grains/Zn metal content of Zn metal grain metallic Mg2Zn11, added Znalloy grains grains/ grains/Zn alloy fracture compounds Mg2Zn3,Invention metal (μm) Zn alloy grains surfaces present on MgZn, Examplegrains Fine Coarse grains (Mass %) or cracks Average grain Mg7Zn3 Numberof No (μm) metal metal (Vol %) Zn Mg Al Si present? aspect ratiosurfaces? present? faces 3292 7.8 2.65 8.56 66.99 98.6 1.4 0 0 No 1.22Yes Yes 2 3293 16.5 2.94 8.21 43.38 76.45 23.5 0 0.05 Yes 1.14 Yes Yes 63294 6.54 2.58 8.33 39.75 91.1 8.9 0 0 Yes 1.13 Yes Yes 7 3295 8.45 2.378 65.38 85.1 14.9 0 0 Yes 1.02 Yes Yes 6 3296 8.5 2.15 9.22 45.46 77.4818.4 2.55 1.57 Yes 1.06 Yes Yes 7 3297 13.6 2.96 9.36 22.55 97.9 2.1 0 0Yes 1.05 Yes Yes 6 3298 12.33 2.85 9.45 42.13 94.8 5.2 0 0 Yes 1.24 YesYes 2 3299 16.5 2.94 9.61 38.50 84.6 15.4 0 0 Yes 1.33 Yes Yes 2 33007.9 2.11 9.85 64.13 89.3 10.7 0 0 Yes 1.27 Yes Yes 6 3301 10.5 2.68 9.2344.21 83.3 16.7 0 0 Yes 1.05 Yes Yes 7 3302 16.5 2.99 9.08 39.51 80.0519.6 0.35 0 No 1.12 Yes Yes 6 3303 10.64 1.82 9.87 78.64 85.5 14.5 0 0No 1.23 Yes Yes 6 3304 10.5 1.42 9.46 42.05 85 14.2 0 0.8 No 1.36 YesYes 2 3305 20.59 2.12 9.28 64.58 87.3 12.7 0 0 No 1.11 Yes Yes 7 33068.5 1.92 9.45 47.76 89.5 10.5 0 0 Yes 1.07 Yes Yes 2 3307 0.5 2.11 9.6324.10 87.3 11.8 0 0.9 Yes 1.42 Yes Yes 2 3308 10.5 2.97 9.16 39.11 86.412.8 0.5 0.3 Yes 1.38 Yes Yes 6 3309 11.5 2.36 10.39 19.65 93.8 6.2 0 0Yes 1.22 Yes Yes 7 3310 36.5 3.05 10.56 65.39 83.8 16.2 0 0 Yes 1.14 YesYes 7 3311 1.5 2.15 10.74 48.57 80.4 19.6 0 0 Yes 1.13 Yes Yes 6 Ratioof (Zn metal Coating details grains or Zn alloy Ratio of finegrains):(Later- metal grains added Zn metal in coat grains) Mg outermostTotal Later- content surface layer metal Zn metal added of all 10%thickness grain Invention grains/ Zn metal to total fine content BaseCoat Example Zn alloy Metal grains metal grains of coat resin thicknessCoating Corrosion No grains grains (Mass %) (Mass % (Mass %) type (μm)method Test Results 3292 1 0.5 0.933 64.5 47 Urethane 112 Spray E resin3293 1 9 2.350 68.9 48 Alkali 24 Spray E silicate 3294 1 4.5 1.618 64.751 Urethane 150 Spray E resin 3295 1 136 0.109 77.9 53 Alkali 18 Spray Esilicate 3296 1 13 1.314 43.7 88 Alkyl 19 Brush E silicate 3297 1 10.60.181 7.8 85 Alkyl 24 Spray E silicate 3298 1 1.6 2.000 16.0 83 Urethane99 Spray E resin 3299 1 68 0.223 89.6 82 Alkyl 7 Spray E silicate 3300 14.5 1.945 11.8 83 Epoxy 100 Spray E resin 3301 1 10.5 1.452 4.6 47 Alkyl27 Brush E silicate 3302 1 4.9 3.322 2.5 51 Alkali 15 Spray E silicate3303 1 10.5 1.261 18.9 52 Alkyl 14 Spray E silicate 3304 1 192 0.07475.9 51 Urethane 55 Spray E resin 3305 1 0.07 11.869 55.9 52 Alkyl 8Spray E silicate 3306 1 9.5 1.000 53.8 89 Urethane 122 Brush E resin3307 1 2.6 3.278 97.5 85 Alkyl 54 Spray E silicate 3308 1 4.5 2.327 88.482 Alkali 19 Spray E silicate 3309 1 3 1.550 54.8 87 Alkyl 25 Brush Esilicate 3310 1 7.5 1.906 45.7 88 Alkyl 58 Spray E silicate 3311 1 770.251 34.7 49 Alkyl 21 Spray E silicate

TABLE 167 Percent Diameter of fine- Mg solid distribution grain solution(peak metal phase and diameter) of grains Zn—Mg Any of Ave diameter Znmetal among Zn Chemical component Alloy inter- MgZn2, of later-grains/Zn metal content of Zn metal grain metallic Mg2Zn11, added Znalloy grains grains/ grains/Zn alloy fracture compounds Mg2Zn3,Invention metal (μm) Zn alloy grains surfaces present on MgZn, Examplegrains Fine Coarse grains (Mass %) or cracks Average grain Mg7Zn3 Numberof No (μm) metal metal (Vol %) Zn Mg Al Si present? aspect ratiosurfaces? present? faces 3312 8.7 2.19 10.27 24.91 87.6 12.4 0 0 Yes1.02 Yes Yes 7 3313 7.8 2.48 11.5 39.92 89.3 10.7 0 0 Yes 1.06 Yes Yes 73314 5.96 2.85 11.67 22.65 91.5 8.5 0 0 Yes 1.05 Yes Yes 6 3315 0.062.75 11.85 66.20 94.9 5.1 0 0 Yes 1.24 Yes Yes 7 3316 0.9 2.46 11.3849.38 75.5 24.5 0 0 Yes 1.33 Yes Yes 2 3317 3.6 2.71 12.61 30.58 86.513.5 0 0 Yes 1.27 Yes Yes 7 3318 10.5 2.36 12.78 45.59 80 20 0 0 Yes1.05 Yes Yes 7 3319 0.05 2.16 9.57 28.32 84.5 15.5 0 0 Yes 1.12 Yes Yes2 3320 2.32 2.46 9.81 71.87 88 10.5 1.5 0 Yes 1.23 Yes Yes 6 3321 20.42.49 8.43 53.05 92.1 7.9 0 0 Yes 1.36 Yes Yes 6 3322 7.34 2.95 8.5527.74 95.2 4.8 0 0 Yes 1.11 Yes Yes 7 3323 9.4 2.36 8.22 42.75 81.6 18.40 0 Yes 1.07 Yes Yes 7 3324 23.43 2.21 9.44 23.29 86.8 12.7 0 0.5 Yes1.42 Yes Yes 6 3325 5.96 2.25 9.58 61.12 89.7 10.3 0 0 No 1.38 Yes Yes 73326 10.64 2.44 9.67 44.30 71.2 20.8 8 0 Yes 1.22 Yes Yes 2 3327 16.52.78 9.83 23.96 97.5 2.5 0 0 No 1.14 Yes Yes 2 3328 7.95 2.15 10.0744.09 84.8 15.2 0 0 Yes 1.13 Yes Yes 6 3329 7.95 2.19 9.45 24.63 80.819.2 0 0 No 1.02 Yes Yes 7 3330 9.64 2.48 9.3 62.46 78.7 13.5 7.8 0 Yes1.06 Yes Yes 6 3331 0.96 2.59 9.99 45.64 88.1 11.9 0 0 No 1.05 Yes Yes 2Ratio of (Zn metal Coating details grains or Zn alloy Ratio of finegrains):(Later- metal grains added Zn metal in coat grains) Mg outermostTotal Later- content surface layer metal Zn metal added of all 10%thickness grain Invention grains/ Zn metal to total fine content BaseCoat Example Zn alloy Metal grains metal grains of coat resin thicknessCoating Corrosion No grains grains (Mass %) (Mass % (Mass %) type (μm)method Test Results 3312 1 10.5 1.078 57.9 50 Alkali 19 Brush E silicate3313 1 15.5 0.648 65.4 51 Urethane 56 Spray E resin 3314 1 5.8 1.25087.9 52 Alkyl 77 Spray E silicate 3315 1 1.9 1.759 2.9 53 Alkyl 12 SprayE silicate 3316 1 16.9 1.369 12.6 88 Alkyl 64 Spray E silicate 3317 11.5 5.400 53.8 85 Alkyl 34 Brush E silicate 3318 1 0.05 19.048 17.8 83Alkali 28 Spray E silicate 3319 1 215 0.072 34.7 81 Urethane 109 Brush Eresin 3320 1 4.2 2.019 55.7 80 Alkyl 15 Spray E silicate 3321 1 1.53.160 64.5 47 Alkyl 14 Spray E silicate 3322 1 4.8 0.828 68.9 49 Alkyl18 Spray E silicate 3323 1 0.5 12.267 64.7 50 Urethane 122 Brush E resin3324 1 2.3 3.848 77.9 51 Alkyl 54 Spray E silicate 3325 1 0.05 9.81043.7 52 Alkali 19 Spray E silicate 3326 1 120 0.172 7.8 83 Alkyl 25Brush E silicate 3327 1 3.7 0.532 16.0 88 Alkyl 58 Spray E silicate 33281 16.5 0.869 89.6 85 Alkyl 21 Spray E silicate 3329 1 24 0.768 11.8 83Alkali 19 Brush E silicate 3330 1 0.01 13.366 4.6 82 Urethane 56 Spray Eresin 3331 1 7.8 1.352 2.5 47 Alkyl 77 Spray E silicate

TABLE 168 Percent Diameter of fine- Mg solid distribution grain solution(peak metal phase and diameter) of grains Zn—Mg Any of Ave diameter Znmetal among Zn Chemical component Alloy inter- MgZn2, of later-grains/Zn metal content of Zn metal grain metallic Mg2Zn11, added Znalloy grains grains/ grains/Zn alloy fracture compounds Mg2Zn3,Invention metal (μm) Zn alloy grains surfaces present on MgZn, Examplegrains Fine Coarse grains (Mass %) or cracks Average grain Mg7Zn3 Numberof No (μm) metal metal (Vol %) Zn Mg Al Si present? aspect ratiosurfaces? present? faces 3332 5.26 2.47 9.58 25.30 88.5 10.6 0 0.9 Yes1.24 Yes Yes 2 3333 13.5 2.69 9.4 42.84 84.6 15.4 0 0 Yes 1.33 Yes Yes 73334 13.5 2.57 9.57 25.44 97.4 2.6 0 0 Yes 1.27 Yes Yes 6 3335 9.64 2.499.54 63.27 83.3 16.7 0 0 Yes 1.37 Yes Yes 7 3336 16.5 2.68 9.58 46.4591.9 8.1 0 0 Yes 1.10 Yes Yes 7 3337 20.59 2.35 9.25 46.45 86.3 13.7 0 0Yes 1.04 Yes Yes 6 3338 0.96 2.48 10.04 50.91 81.5 18.5 0 0 Yes 1.02 YesYes 2 3339 6.54 2.13 11.27 27.25 97.6 2.4 0 0 Yes 1.01 Yes Yes 7 33405.26 1.93 11.44 42.26 89.1 10.9 0 0 Yes 1.08 Yes Yes 2 3341 10.64 2.058.9 33.69 92.8 7.2 0 0 Yes 1.14 Yes Yes 2 3342 9.64 1.42 8.75 48.7081.96 17.5 0.5 0.04 No 1.23 Yes Yes 7 3343 6.9 1.46 9.44 29.24 85.4 14.60 0 No 1.33 Yes Yes 2 3344 10.5 1.75 9.03 67.07 90.6 9.4 0 0 Yes 1.37Yes Yes 7 3345 13.5 1.86 8.85 50.25 92.9 7.1 0 0 Yes 1.44 Yes Yes 2 334620.59 1.74 8.95 29.91 77.5 22.5 0 0 Yes 1.21 Yes Yes 6 3347 7.82 1.9612.54 87.50 84.8 13.7 1.5 0 No 1.22 Yes Yes 6 3348 5.26 1.65 8.7 30.5887.1 12.9 0 0 No 1.23 Yes Yes 7 3349 7.06 2.35 8.55 68.41 95.7 4.3 0 0Yes 1.47 Yes Yes 6 3350 0.64 1.62 10.72 54.59 80.2 17.6 1 1.2 No 1.01Yes Yes 2 3351 46.8 2.25 9.9 34.25 98.8 0.6 0.6 0 Yes 1.04 Yes Yes 2Ratio of (Zn metal Coating details grains or Zn alloy Ratio of finegrains):(Later- metal grains added Zn metal in coat grains) Mg outermostTotal Later- content surface layer metal Zn metal added of all 10%thickness grain Invention grains/ Zn metal to total fine content BaseCoat Example Zn alloy Metal grains metal grains of coat resin thicknessCoating Corrosion No grains grains (Mass %) (Mass % (Mass %) type (μm)method Test Results 3332 1 1.6 4.077 18.9 46 Alkyl 54 Spray E silicate3333 1 3.2 3.667 75.9 49 Alkali 2 Spray G silicate 3334 1 5.4 0.406 55.950 Alkali 20 Spray E silicate 3335 1 220 0.076 53.8 51 Alkali 5 Spray Gsilicate 3336 1 2.2 2.531 97.5 83 Alkyl 20 Spray E silicate 3337 1 2.83.605 88.4 82 Alkali 15 Brush E silicate 3338 1 12 1.423 54.8 88 Alkyl57 Brush E silicate 3339 1 10.6 0.207 45.7 85 Alkali 13 Brush E silicate3340 1 35 0.303 34.7 86 Alkyl 22 Brush E silicate 3341 1 125.5 0.05757.9 47 Alkali 20 Spray E silicate 3342 1 6 2.500 65.4 48 Alkyl 27 SprayE silicate 3343 1 34 0.417 87.9 50 Alkali 15 Spray E silicate 3344 1 1.63.615 2.9 51 Alkyl 35 Spray E silicate 3345 1 7.5 0.835 12.6 52 Alkali34 Brush E silicate 3346 1 200 0.112 53.8 88 Alkyl 45 Brush E silicate3347 1 7.5 1.612 17.8 89 Alkali 52 Brush E silicate 3348 1 3.2 3.07134.7 86 Alkyl 23 Brush E silicate 3349 1 2.6 1.194 76.8 87 Alkali 5Spray E silicate 3350 1 3 4.400 58.9 86 Alkyl 52 Brush E silicate 3351 115.2 0.037 50.8 46 Alkali 150 Brush E silicate

TABLE 169 Percent Diameter of fine- Mg solid distribution grain solution(peak metal phase and diameter) of grains Zn—Mg Any of Ave diameter Znmetal among Zn Chemical component Alloy inter- MgZn2, of later-grains/Zn metal content of Zn metal grain metallic Mg2Zn11, added Znalloy grains grains/ grains/Zn alloy fracture compounds Mg2Zn3,Invention metal (μm) Zn alloy grains surfaces present on MgZn, Examplegrains Fine Coarse grains (Mass %) or cracks Average grain Mg7Zn3 Numberof No (μm) metal metal (Vol %) Zn Mg Al Si present? aspect ratiosurfaces? present? faces 3352 16.5 2.36 9.57 37.61 86.9 10.3 1.6 1.2 Yes1.05 Yes Yes 2 3353 13.5 2.24 10.79 45.60 92.98 7 0.02 0 Yes 1.12 YesYes 2 3354 0.96 2.46 10.93 46.70 75.5 23.5 1 0 Yes 1.11 Yes Yes 2 33550.96 1.56 11.02 41.22 82.5 17.5 0 0 No 1.08 Yes Yes 2 3356 8.45 1.2411.18 45.68 80.1 12.4 7.5 0 Yes 1.47 Yes Yes 6 3357 2.9 1.68 11.42 22.0285.09 14.9 0 0.01 Yes 1.50 Yes Yes 6 3358 5.4 2.65 10.8 37.03 78.7 20.70 0.6 No 1.13 Yes Yes 7 3359 10.6 2.22 10.65 28.46 91.29 8.6 0 0.11 Yes1.26 Yes Yes 6 3360 2.32 2.45 11.34 43.47 85.8 14.2 0 0 Yes 1.14 Yes Yes2 3361 7.8 2.23 11.62 35.19 98.12 0.08 0 1.8 Yes 1.49 Yes Yes 7 33627.95 2.26 11.15 73.02 83.46 15.2 0 1.34 No 1.34 Yes Yes 2 3363 20.592.72 12.38 56.20 73.17 17.4 9 0.43 Yes 1.18 Yes Yes 6 3364 22.5 2.1312.55 35.86 98.6 0.8 0.6 0 Yes 1.17 Yes Yes 6 3365 4.6 1.98 9.34 93.4593.55 6.4 0.05 0 Yes 1.48 Yes Yes 2 3366 4.9 2.02 9.58 30.66 96.78 3.20.02 0 No 1.49 Yes Yes 2 3367 10.5 2.21 9.88 74.21 83 9.2 7.8 0 Yes 1.27Yes Yes 7 3368 8.45 2.55 10 55.39 70.92 19.2 9.88 0 Yes 1.17 Yes Yes 63369 30.5 1.92 10.67 30.08 80.25 15.1 4.65 0 Yes 1.16 Yes Yes 7 337049.5 1.96 11.89 45.09 81.85 14.5 3.65 0 Yes 1.27 Yes Yes 2 3371 5.9 2.1112.03 41.41 89.45 10.5 0.05 0 Yes 1.27 Yes Yes 7 Ratio of (Zn metalCoating details grains or Zn alloy Ratio of fine grains):(Later- metalgrains added Zn metal in coat grains) Mg outermost Total Later- contentsurface layer metal Zn metal added of all 10% thickness grain Inventiongrains/ Zn metal to total fine content Base Coat Example Zn alloy Metalgrains metal grains of coat resin thickness Coating Corrosion No grainsgrains (Mass %) (Mass % (Mass %) type (μm) method Test Results 3352 10.09 9.450 46.8 49 Alkyl 60 Brush E silicate 3353 1 13.5 0.483 23.7 35Alkali 15 Spray E silicate 3354 1 135.4 0.172 53.8 37 Alkyl 24 Spray Esilicate 3355 1 3 4.375 53.8 36 Alkali 34 Spray E silicate 3356 1 7.81.409 43.7 38 Alkyl 20 Brush E silicate 3357 1 10.2 1.330 55.9 48 Alkali200 Brush E silicate 3358 1 7 2.588 65.8 46 Alkyl 56 Brush E silicate3359 1 225.2 0.038 55.7 51 Alkali 34 Spray E silicate 3360 1 5.4 2.21964.5 46 Alkyl 2 Spray G silicate 3361 1 3.2 0.019 68.9 38 Alkali 15Spray E silicate 3362 1 13.5 1.048 64.7 48 Alkali 10 Spray E silicate3363 1 1.6 6.692 77.9 52 Alkyl 125 Brush E silicate 3364 1 1.5 0.32043.7 30 Alkali 24 Brush E silicate 3365 1 2.5 1.829 7.8 76 Alkyl 110Brush E silicate 3366 1 2.6 0.889 16.0 72 Alkali 24 Brush E silicate3367 1 126 0.072 89.6 81 Alkyl 2 Spray G silicate 3368 1 120 0.159 11.864 Alkali 37 Spray E silicate 3369 1 7.5 1.776 4.6 69 Alkyl 113 Brush Esilicate 3370 1 6.5 1.933 2.5 83 Alkali 2 Spray G silicate 3371 1 2.00.500 18.9 30 Alkyl 75 Brush E silicate

TABLE 170 Percent Diameter of fine- Mg solid distribution grain solution(peak metal phase and diameter) of grains Zn—Mg Any of Ave diameter Znmetal among Zn Chemical component Alloy inter- MgZn2, of later-grains/Zn metal content of Zn metal grain metallic Mg2Zn11, added Znalloy grains grains/ grains/Zn alloy fracture compounds Mg2Zn3,Invention metal (μm) Zn alloy grains surfaces present on MgZn, Examplegrains Fine Coarse grains (Mass %) or cracks Average grain Mg7Zn3 Numberof No (μm) metal metal (Vol %) Zn Mg Al Si present? aspect ratiosurfaces? present? faces 3372 4.52 2.97 12.12 17.75 87.3 7.5 5.2 0 Yes1.49 Yes Yes 6 3373 5.96 2.36 12.28 32.76 93.9 6.1 0 0.001 Yes 1.29 YesYes 7 3374 5.5 3.05 12.52 30.89 82.55 16.8 0.05 0.6 Yes 1.23 Yes Yes 63375 3.6 2.57 11.9 45.90 70.7 27.5 1 0.8 Yes 1.23 Yes Yes 7 3376 16.52.65 11.75 42.22 94.6 2.9 0 2.5 Yes 1.23 Yes Yes 6 3377 12.5 2.54 12.4418.56 94 4.5 0 1.5 No 1.23 Yes Yes 2 3378 16.5 2.85 12.03 33.57 99.430.07 0 0.5 Yes 1.27 Yes Yes 7 3379 10.9 2.75 10.61 31.70 96.82 3.1 0.040.04 Yes 1.23 Yes Yes 6 3380 5.6 2.46 11.3 46.71 76.3 20.5 1 2.2 Yes1.36 Yes Yes 6 3381 22.6 2.71 11.58 47.89 68.84 29.5 0.06 1.6 Yes 1.11Yes Yes 6 3382 20.59 2.36 11.11 24.23 92.33 7.6 0.07 0 Yes 1.02 Yes Yes2 3383 20.59 2.16 12.34 39.24 95.2 0.7 1.2 2.9 Yes 1.05 Yes Yes 6 33849.56 2.46 12.51 37.37 91.8 4.6 1.8 1.8 Yes 1.24 Yes Yes 7 3385 5.9 2.4911.64 50.38 82 8.3 9.2 0.5 Yes 1.33 Yes Yes 2 3386 6.54 1.63 9.16 37.1488.2 11.8 0 0 Yes 1.27 Yes Yes 6 3387 21.4 1.51 9.46 13.48 86.06 12.9 01.04 Yes 1.50 Yes Yes 2 3388 9.8 3.05 9.54 40.05 99.34 0.6 0 0.06 Yes1.13 Yes Yes 6 3389 6.59 2.57 9.56 38.18 89.51 9.5 0 0.99 No 1.04 YesYes 7 3390 6.54 2.65 9.46 7.63 88.3 11.7 0 0 Yes 1.02 Yes Yes 7 339116.5 2.54 11.99 37.95 89.9 9.4 0.7 0 Yes 1.08 Yes Yes 2 Ratio of (Znmetal Coating details grains or Zn alloy Ratio of fine grains):(Later-metal grains added Zn metal in coat grains) Mg outermost Total Later-content surface layer metal Zn metal added of all 10% thickness grainInvention grains/ Zn metal to total fine content Base Coat Example Znalloy Metal grains metal grains of coat resin thickness CoatingCorrosion No grains grains (Mass %) (Mass % (Mass %) type (μm) methodTest Results 3372 1 0.007 7.448 75.9 83 Alkali 30 Brush E silicate 33731 9 0.610 55.9 75 Alkyl 34 Brush E silicate 3374 1 7.5 1.976 53.8 76Epoxy 124 Brush E resin 3375 1 50 0.539 97.5 72 Acrylic 15 Spray E resin3376 1 0.005 2.886 88.4 71 Urethane 23 Spray E resin 3377 1 25.6 0.16954.8 82 Polyester 157 Brush E resin 3378 1 56.5 0.001 45.7 81 Epoxy 26Spray E resin 3379 1 1.6 1.192 34.7 83 Acrylic 38 Spray E resin 3380 1 35.125 57.9 50 Urethane 160 Brush E resin 3381 1 100 0.292 65.4 72Polyester 27 Brush E resin 3382 1 65.5 0.114 87.9 47 Epoxy 180 Brush Eresin 3383 1 1.9 0.241 2.9 47 Acrylic 26 Spray E resin 3384 1 2.1 1.48412.6 52 Urethane 180 Brush E resin 3385 1 10.5 0.722 53.8 52 Polyester15 Spray E resin 3386 1 6.5 1.573 17.8 50 Epoxy 2 Spray G resin 3387 119.5 0.629 34.7 46 Acrylic 28 Spray E resin 3388 1 0.8 0.333 55.7 47Urethane 30 Spray E resin 3389 1 18.5 0.487 64.5 83 Polyester 2 Spray Gresin 3390 1 4.3 2.208 68.9 52 Epoxy 157 Brush E resin 3391 1 3.2 2.23864.7 89 Acrylic 28 Brush E resin

TABLE 171 Percent Diameter of fine- Mg solid distribution grain solution(peak metal phase and diameter) of grains Zn—Mg Any of Ave diameter Znmetal among Zn Chemical component Alloy inter- MgZn2, of later-grains/Zn metal content of Zn metal grain metallic Mg2Zn11, added Znalloy grains grains/ grains/Zn alloy fracture compounds Mg2Zn3,Invention metal (μm) Zn alloy grains surfaces present on MgZn, Examplegrains Fine Coarse grains (Mass %) or cracks Average grain Mg7Zn3 Numberof No (μm) metal metal (Vol %) Zn Mg Al Si present? aspect ratiosurfaces? present? faces 3392 7.8 2.85 12.08 14.29 87.8 11.7 0.5 0 Yes1.15 Yes Yes 2 3393 16.5 2.75 12.24 40.86 95.6 4.2 0.2 0 Yes 1.34 YesYes 6 3394 6.54 2.46 12.48 97.50 97.13 2.8 0.07 0 Yes 1.25 Yes Yes 73395 8.45 2.71 11.86 13.30 86.1 13.9 0 0 Yes 1.19 Yes Yes 6 3396 8.52.36 11.71 43.62 82.6 14.6 1.6 1.2 No 1.18 Yes Yes 7 3397 13.6 2.4611.35 56.93 72.95 26.4 0.65 0 Yes 1.24 Yes Yes 6 3398 12.33 1.45 12.0236.59 83.23 16.5 0.27 0 Yes 1.11 Yes Yes 2 3399 16.5 2.42 13.24 39.9579.4 19.5 0.45 0.65 Yes 1.27 Yes Yes 2 3400 7.9 2.11 9.46 86.50 97.081.6 0.33 0.99 Yes 1.31 Yes Yes 6 3401 10.5 2.97 13.47 32.87 90.5 6 1 2.5Yes 1.26 Yes Yes 7 3402 16.5 2.36 9.46 16.23 88.93 8.4 0.87 1.8 Yes 1.14Yes Yes 6 3403 10.64 3.05 13.87 37.40 86.7 13.3 0 0 Yes 1.34 Yes Yes 63404 10.5 2.57 13.25 40.76 81.4 18.6 0. 0 Yes 1.16 Yes Yes 2 3405 20.592.65 13.1 87.31 97.34 1.8 0.86 0 No 1.47 Yes Yes 7 3406 8.5 2.12 9.0892.50 95.25 4.1 0.65 0 Yes 1.48 Yes Yes 2 3407 0.5 1.65 9.87 17.93 82.8716.7 0.43 0 No 1.49 Yes Yes 2 3408 10.5 2.35 9.46 44.50 99 0.4 0.6 0 Yes1.34 Yes Yes 6 3409 11.5 1.63 9.28 96.50 89.35 10.6 0.05 0 Yes 1.29 YesYes 7 3410 36.5 2.64 9.45 16.94 93.08 6.9 0.02 0 Yes 1.18 Yes Yes 7 34111.5 2.35 9.25 88.12 99.82 0.05 0.06 0.07 Yes 1.48 Yes Yes 6 Ratio of (Znmetal Coating details grains or Zn alloy Ratio of fine grains):(Later-metal grains added Zn metal in coat grains) Mg outermost Total Later-content surface layer metal Zn metal added of all 10% thickness grainInvention grains/ Zn metal to total fine content Base Coat Example Znalloy Metal grains metal grains of coat resin thickness CoatingCorrosion No grains grains (Mass %) (Mass % (Mass %) type (μm) methodTest Results 3392 1 1.5 4.680 77.9 85 Alkyl 130 Brush E silicate 3393 14.5 0.764 43.7 53 Alkyl 29 Brush E silicate 3394 1 15.5 0.170 7.8 88Epoxy 30 Brush E resin 3395 1 10.5 1.209 16.0 85 Acrylic 120 Brush Eresin 3396 1 2.5 4.171 89.6 52 Urethane 187 Brush E resin 3397 1 9 2.64011.8 83 Polyester 28 Spray E resin 3398 1 10.5 0.156 4.6 88 Epoxy 5Spray E resin 3399 1 5.7 2.910 2.5 49 Acrylic 35 Spray E resin 3400 13.9 0.327 18.9 50 Urethane 5 Spray G resin 3401 1 4.5 1.091 75.9 51Polyester 200 Brush E resin 3402 1 3.6 1.826 55.9 83 Alkali 25 Spray Esilicate 3403 1 16.4 0.764 53.8 82 Alkali 15 Spray E silicate 3404 1 62.657 97.5 88 Alkyl 20 Spray E silicate 3405 1 7.5 0.212 88.4 85 Alkali18 Spray E silicate 3406 1 10.5 0.357 54.8 87 Alkyl 22 Spray E silicate3407 1 2.6 4.639 45.7 86 Alkali 19 Spray E silicate 3408 1 1.5 0.16034.7 46 Alkyl 29 Spray E silicate 3409 1 13.5 0.731 57.9 49 Alkali 23Spray E silicate 3410 1 2.6 1.917 65.4 35 Alkyl 21 Spray E silicate 34111 6.5 0.007 87.9 30 Alkali 19 Spray E silicate

TABLE 172 Percent Diameter of fine- Mg solid distribution grain solution(peak metal phase and diameter) of grains Zn—Mg Any of Ave diameter Znmetal among Zn Chemical component Alloy inter- MgZn2, of later-grains/Zn metal content of Zn metal grain metallic Mg2Zn11, added Znalloy grains grains/ grains/Zn alloy fracture compounds Mg2Zn3,Invention metal (μm) Zn alloy grains surfaces present on MgZn, Examplegrains Fine Coarse grains (Mass %) or cracks Average grain Mg7Zn3 Numberof No (μm) metal metal (Vol %) Zn Mg Al Si present? aspect ratiosurfaces? present? faces 3412 8.7 2.31 9.46 60.57 91.56 6.4 1.05 0.99Yes 1.27 Yes Yes 7 3413 7.8 2.62 9.46 39.48 93.36 3.5 2.6 0.54 Yes 1.17Yes Yes 7 3414 5.96 2.52 9.46 15.82 82.13 17.5 0.05 0.32 Yes 1.27 YesYes 6 3415 0.06 2.24 13.32 49.57 91.2 3.6 5.2 0 No 1.27 Yes Yes 7 34160.9 0.05 6.54 86.52 94.1 5.9 0 0.001 Yes 1.48 Yes Yes 2 3417 3.6 2.426.35 90.98 83.2 16.2 0 0.6 No 1.49 Yes Yes 7 3418 10.5 0.11 7.54 67.3276.7 22.5 0 0.8 Yes 1.34 Yes Yes 7 3419 0.05 1.92 8.64 82.33 96.52 3.40.04 0.04 Yes 1.23 Yes Yes 2 3420 2.32 0.46 6.45 73.76 68.3 26.5 3 2.2Yes 1.23 Yes Yes 6 3421 20.4 0.77 6.48 88.77 72.84 25.5 0.06 1.6 Yes1.23 Yes Yes 6 3422 8.6 2.35 9.25 45.02 87.2 12.8 0 0 Yes 1.05 Yes Yes 63423 10.5 2.33 9.46 15.2 91.5 8.5 0 0 Yes 1.06 Yes Yes 7 3424 8.7 1.959.32 51.41 75.23 24.5 0.27 0 Yes 1.38 Yes Yes 7 3425 7.8 2.15 9.22 45.4677.48 18.4 2.55 1.57 Yes 1.06 Yes Yes 6 3426 5.96 2.23 11.62 35.19 72.620.08 25.5 1.8 Yes 1.49 Yes Yes 7 3427 1.6 2.26 11.15 73.02 64.06 15.219.4 1.34 No 1.34 Yes Yes 2 3428 7.2 1.98 9.34 93.45 83 6.4 10.6 0 Yes1.48 Yes Yes 7 3429 10.5 2.02 9.58 30.66 86.4 3.2 10.4 0 No 1.49 Yes Yes7 3430 3.6 2.36 12.28 32.76 80.4 6.1 13.5 0.001 Yes 1.29 Yes Yes 2 34314.5 3.05 12.52 30.89 70.1 16.8 12.5 0.6 Yes 1.23 Yes Yes 6 3432 7.9 2.5711.9 45.9 60.9 27.5 10.8 0.8 Yes 1.23 Yes Yes 6 Ratio of (Zn metalCoating details grains or Zn alloy Ratio of fine grains):(Later- metalgrains added Zn metal in coat grains) Mg outermost Total Later- contentsurface layer metal Zn metal added of all 10% thickness grain Inventiongrains/ Zn metal to total fine content Base Coat Example Zn alloy Metalgrains metal grains of coat resin thickness Coating Corrosion No grainsgrains (Mass %) (Mass % (Mass %) type (μm) method Test Results 3412 11.6 2.462 2.9 76 Alkyl 15 Spray E silicate 3413 1 3.8 0.729 12.6 72Alkali 18 Spray E silicate 3414 1 0.08 16.204 53.8 30 Alkyl 22 Spray Esilicate 3415 1 164.5 0.022 17.8 83 Alkyl 21 Spray E silicate 3416 1 3.61.283 34.7 75 Alkyl 29 Spray E silicate 3417 1 8.6 1.688 76.8 76 Alkali23 Spray E silicate 3418 1 12 1.731 58.9 72 Alkyl 21 Spray E silicate3419 1 5.8 0.500 50.8 83 Alkali 19 Spray E silicate 3420 1 10 2.409 46.850 Alkyl 21 Spray E silicate 3421 1 1 12.750 23.7 72 Alkali 19 Spray Esilicate 3422 1 10.5 1.113 87.9 50 Acrylic 654 Spray E resin 3423 1 6.51.133 2.9 48 Alkali 700 Spray E silicate 3424 1 19.5 1.195 12.6 75 Alkyl555 Spray E silicate 3425 1 0.8 10.222 53.8 55 Alkyl 12 Spray E silicate3426 1 5.3 0.013 17.8 38 Alkyl 152 Brush E silicate 3427 1 4.3 2.86834.7 48 Urethane 674 Spray E resin 3428 1 3.2 1.524 76.8 76 Polyester325 Spray E resin 3429 1 1.5 1.280 58.9 72 Alkyl 665 Spray E silicate3430 1 4.5 1.109 50.8 75 Alkyl 354 Brush E silicate 3431 1 0.8 9.33346.8 76 Alkyl 165 Spray E silicate 3432 1 6.5 3.667 23.7 72 Urethane 354Spray E resin

INDUSTRIAL APPLICABILITY

As explained in the foregoing, the present invention enables provisionof highly corrosion-resistant coating material and highlycorrosion-resistant steel that exhibit excellent corrosion-resistanceand rust prevention unattainable using the metal particles added toconventional rust-prevention coating materials. It achieves thisimprovement over the prior art by producing Zn metal particles or Znalloy particles having two grain-diameter frequency peaks in thegrain-diameter frequency distribution and combining the particles withan inorganic or organic binder.

The present invention therefore can therefore be advantageously appliedfor primary rust proofing or combating corrosion of steel materials usedin industrial machinery, vehicles, ships, chemical industry facilities,buildings, bridges and the like. As such, it has considerable industrialapplicability.

1. A highly corrosion-resistant, rust-prevention coating materialcomprising: an inorganic binder; and Zn metal particles comprised of Znand unavoidable impurities and dispersed in the binder at the rate of 30mass % or greater based on a dry coating film, wherein (i) the Zn metalparticles include (i-1) fine-grain Zn metal particles of 0.05 to 5 μmpeak grain diameter whose grain-diameter distribution has agrain-diameter frequency distribution with a single peak and a tail oneither side of the peak and (i-2) coarse-grain Zn metal particles of 6to 100 μm peak grain diameter whose grain-diameter distribution has agrain-diameter frequency distribution with another single peak and atail on either side of the peak, and wherein (ii) the percentage of allZn metal particles accounted for by Zn metal particles of 0.05 to 5 μmgrain diameter expressed in volume percentage is 5 to 99%.
 2. A highlycorrosion-resistant, rust-prevention coating material comprising: aninorganic binder; and Zn metal particles comprised of Zn and unavoidableimpurities and dispersed in the binder at the rate of 30 mass % orgreater based on a dry coating film, wherein (i) the Zn metal particlesinclude (i-1) fine-grain Zn metal particles of 0.01 to 5 μm averagegrain diameter whose grain-diameter distribution has a grain-diameterfrequency distribution with a single peak and a tail on either side ofthe peak and (i-2) coarse-grain Zn metal particles of 6 to 100 μmaverage grain diameter whose grain-diameter distribution has agrain-diameter frequency distribution with another single peak and atail on either side of the peak, and wherein (ii) the percentage of thefine-grain Zn metal particles and coarse-grain Zn metal particlesaccounted for by the fine-grain Zn metal particles expressed in volumepercentage is 5 to 99%.
 3. A highly corrosion-resistant, rust-preventioncoating material according to claim 1, wherein the metal particles areZn alloy particles containing, in mass %, Mg: 0.01 to 30% and a balanceof Zn and unavoidable impurities.
 4. A highly corrosion-resistant,rust-prevention coating material according to claim 1, wherein the zincmetal particles are mixed particles including (a) zinc metal particlescontaining Zn and unavoidable impurities and (b) Zn alloy particlescontaining, in mass %, Mg: 0.01 to 30% and a balance of Zn andunavoidable impurities.
 5. A highly corrosion-resistant, rust-preventioncoating material according to claim 3, wherein the Zn alloy particlesfurther contain, in mass %, one or both of Al: 0.01 to 30% and Si: 0.01to 3%.
 6. A highly corrosion-resistant, rust-prevention coating materialaccording to claim 3, wherein the Zn alloy particles have physicalfragmentation faces and/or cracks of 0.01 μm or greater length or cracksof 0.01 μm or greater depth, and Mg solid solution phase and Zn—Mgintermetallic compounds are present at the fracture facets and/or cracks7. A highly corrosion-resistant, rust-prevention coating materialaccording to claim 6, wherein an average value of the aspect ratio(maximum grain diameter/minimum grain diameter) of the Zn alloyparticles is 1 to 1.5.
 8. A highly corrosion-resistant, rust-preventioncoating material according to claim 6, wherein the Zn—Mg intermetalliccompounds are one or more of MgZn₂, Mg₂Zn₁₁, Mg₂Zn₃, MgZn and Mg₇Zn₃. 9.A highly corrosion-resistant, rust-prevention coating material accordingto claim 3, wherein the Zn alloy particles are polyhedrons havingmultiple flat or curved surfaces each enclosed by a single contour line.10. A highly corrosion-resistant, rust-prevention coating materialaccording to claim 3, which has dispersed in the binder thereof not onlysaid fine-grain Zn alloy particles and coarse-grain Zn alloy particlesbut also Zn metal particles of an average grain diameter of 0.05 to 50μm containing Zn and a balance of unavoidable impurities, wherein (a)the total volume percentage of all metal particles accounted for by Znalloy particles of a grain diameter of 0.05 to 5 μm expressed in volumepercentage is 5 to 99% and (b) the metal particles are in totaldispersed in the binder at the rate of 30 mass % or greater based on adry coating film.
 11. A highly corrosion-resistant, rust-preventioncoating material according to claim 10, wherein the ratio, in mass %, of(amount of the fine-grain and coarse-grain Zn metal particles or amountof the fine-grain and coarse-grain Zn alloy particles):(amount of the Znmetal particles of an average grain diameter of 0.05 to 50 μm containingZn and a balance of unavoidable impurities) is, when expressed as 1/x,such that x is 300.0 or less.
 12. A highly corrosion-resistant,rust-prevention coating material according to claim 11, wherein the Mgcontent of the mixed particles including the Zn alloy particles and theZn metal particles of an average grain diameter of 0.05 to 50 μmcontaining Zn and a balance of unavoidable impurities is 0.01 to lessthan 30 mass % where the total of the mixed particles is defined as 100mass %.
 13. A highly corrosion-resistant, rust-prevention coatingmaterial according to claim 1, wherein an organic binder is used insteadof the inorganic binder.
 14. A highly corrosion-resistant steel coatedwith a highly corrosion-resistant, rust-prevention coating material setout in claim 1, wherein the thickness of the dry coating film is 2 to700 μm and the fine-grain Zn metal particles and coarse-grain Zn metalparticles or the fine-grain Zn alloy particles and coarse-grain Zn alloyparticles are dispersed in the coating film.
 15. A highlycorrosion-resistant steel coated with a highly corrosion-resistant,rust-prevention coating material set out in claim 3, wherein thethickness of the dry coating film is 2 to 700 μm and the fine-grain Znalloy particles and coarse-grain Zn alloy particles are dispersed in thecoating film, and wherein the content ratio of the fine-grain Zn alloyparticles of a grain diameter of 0.05 to 5 μm in an outermost 10%thickness surface layer region of the dry film is twice or greater thecontent ratio of the fine-grain Zn alloy particles of a grain diameterof 0.05 to 5 μm in the whole dry film.
 16. A steel structure equippedpartially or completely with the highly corrosion-resistant steel setout in claim 14.